[lvm-devel] master - conf: add separate 'conf' dir for config files
Peter Rajnoha
prajnoha at fedoraproject.org
Tue Jul 2 13:33:08 UTC 2013
Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=6d1ed2254ccfe2a34f1423ea2359cf6a554e8d9e
Commit: 6d1ed2254ccfe2a34f1423ea2359cf6a554e8d9e
Parent: 9c12a23a997418700b4dac1a44d193e6a837f3a3
Author: Peter Rajnoha <prajnoha at redhat.com>
AuthorDate: Fri Jun 28 10:46:00 2013 +0200
Committer: Peter Rajnoha <prajnoha at redhat.com>
CommitterDate: Tue Jul 2 15:22:11 2013 +0200
conf: add separate 'conf' dir for config files
---
Makefile.in | 4 +-
conf/Makefile.in | 31 ++
conf/example.conf.in | 923 ++++++++++++++++++++++++++++++++++++++++++++++++++
configure | 6 +-
configure.in | 4 +-
doc/Makefile.in | 31 --
doc/example.conf.in | 923 --------------------------------------------------
7 files changed, 961 insertions(+), 961 deletions(-)
diff --git a/Makefile.in b/Makefile.in
index ceb8964..2ee20e5 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -16,7 +16,7 @@ srcdir = @srcdir@
top_srcdir = @top_srcdir@
top_builddir = @top_builddir@
-SUBDIRS = doc include man
+SUBDIRS = conf include man
ifeq ("@UDEV_RULES@", "yes")
SUBDIRS += udev
@@ -43,7 +43,7 @@ ifeq ($(MAKECMDGOALS),clean)
endif
# FIXME Should use intermediate Makefiles here!
ifeq ($(MAKECMDGOALS),distclean)
- SUBDIRS = doc include man test scripts \
+ SUBDIRS = conf include man test scripts \
libdaemon lib tools daemons libdm \
udev po liblvm python \
unit-tests/datastruct unit-tests/mm unit-tests/regex
diff --git a/conf/Makefile.in b/conf/Makefile.in
new file mode 100644
index 0000000..c63e3ce
--- /dev/null
+++ b/conf/Makefile.in
@@ -0,0 +1,31 @@
+#
+# Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
+#
+# This file is part of LVM2.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = @top_builddir@
+
+CONFSRC=example.conf
+CONFDEST=lvm.conf
+
+include $(top_builddir)/make.tmpl
+
+install_lvm2: $(CONFSRC)
+ @if [ ! -e $(confdir)/$(CONFDEST) ]; then \
+ echo "$(INSTALL_WDATA) -D $< $(confdir)/$(CONFDEST)"; \
+ $(INSTALL_WDATA) -D $< $(confdir)/$(CONFDEST); \
+ fi
+
+install: install_lvm2
+
+DISTCLEAN_TARGETS += $(CONFSRC)
diff --git a/conf/example.conf.in b/conf/example.conf.in
new file mode 100644
index 0000000..3bc8c3c
--- /dev/null
+++ b/conf/example.conf.in
@@ -0,0 +1,923 @@
+# This is an example configuration file for the LVM2 system.
+# It contains the default settings that would be used if there was no
+# @DEFAULT_SYS_DIR@/lvm.conf file.
+#
+# Refer to 'man lvm.conf' for further information including the file layout.
+#
+# To put this file in a different directory and override @DEFAULT_SYS_DIR@ set
+# the environment variable LVM_SYSTEM_DIR before running the tools.
+#
+# N.B. Take care that each setting only appears once if uncommenting
+# example settings in this file.
+
+# This section allows you to set the way the configuration settings are handled.
+config {
+
+ # If enabled, any LVM2 configuration mismatch is reported.
+ # This implies checking that the configuration key is understood
+ # by LVM2 and that the value of the key is of a proper type.
+ # If disabled, any configuration mismatch is ignored and default
+ # value is used instead without any warning (a message about the
+ # configuration key not being found is issued in verbose mode only).
+ checks = 1
+
+ # If enabled, any configuration mismatch aborts the LVM2 process.
+ abort_on_errors = 0
+
+ # Directory where LVM looks for configuration profiles.
+ profile_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_PROFILE_SUBDIR"
+}
+
+# This section allows you to configure which block devices should
+# be used by the LVM system.
+devices {
+
+ # Where do you want your volume groups to appear ?
+ dir = "/dev"
+
+ # An array of directories that contain the device nodes you wish
+ # to use with LVM2.
+ scan = [ "/dev" ]
+
+ # If set, the cache of block device nodes with all associated symlinks
+ # will be constructed out of the existing udev database content.
+ # This avoids using and opening any inapplicable non-block devices or
+ # subdirectories found in the device directory. This setting is applied
+ # to udev-managed device directory only, other directories will be scanned
+ # fully. LVM2 needs to be compiled with udev support for this setting to
+ # take effect. N.B. Any device node or symlink not managed by udev in
+ # udev directory will be ignored with this setting on.
+ obtain_device_list_from_udev = 1
+
+ # If several entries in the scanned directories correspond to the
+ # same block device and the tools need to display a name for device,
+ # all the pathnames are matched against each item in the following
+ # list of regular expressions in turn and the first match is used.
+ preferred_names = [ ]
+
+ # Try to avoid using undescriptive /dev/dm-N names, if present.
+ # preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ]
+
+ # A filter that tells LVM2 to only use a restricted set of devices.
+ # The filter consists of an array of regular expressions. These
+ # expressions can be delimited by a character of your choice, and
+ # prefixed with either an 'a' (for accept) or 'r' (for reject).
+ # The first expression found to match a device name determines if
+ # the device will be accepted or rejected (ignored). Devices that
+ # don't match any patterns are accepted.
+
+ # Be careful if there there are symbolic links or multiple filesystem
+ # entries for the same device as each name is checked separately against
+ # the list of patterns. The effect is that if the first pattern in the
+ # list to match a name is an 'a' pattern for any of the names, the device
+ # is accepted; otherwise if the first pattern in the list to match a name
+ # is an 'r' pattern for any of the names it is rejected; otherwise it is
+ # accepted.
+
+ # Don't have more than one filter line active at once: only one gets used.
+
+ # Run vgscan after you change this parameter to ensure that
+ # the cache file gets regenerated (see below).
+ # If it doesn't do what you expect, check the output of 'vgscan -vvvv'.
+
+
+ # By default we accept every block device:
+ filter = [ "a/.*/" ]
+
+ # Exclude the cdrom drive
+ # filter = [ "r|/dev/cdrom|" ]
+
+ # When testing I like to work with just loopback devices:
+ # filter = [ "a/loop/", "r/.*/" ]
+
+ # Or maybe all loops and ide drives except hdc:
+ # filter =[ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
+
+ # Use anchors if you want to be really specific
+ # filter = [ "a|^/dev/hda8$|", "r/.*/" ]
+
+ # Since "filter" is often overridden from command line, it is not suitable
+ # for system-wide device filtering (udev rules, lvmetad). To hide devices
+ # from LVM-specific udev processing and/or from lvmetad, you need to set
+ # global_filter. The syntax is the same as for normal "filter"
+ # above. Devices that fail the global_filter are not even opened by LVM.
+
+ # global_filter = []
+
+ # The results of the filtering are cached on disk to avoid
+ # rescanning dud devices (which can take a very long time).
+ # By default this cache is stored in the @DEFAULT_SYS_DIR@/@DEFAULT_CACHE_SUBDIR@ directory
+ # in a file called '.cache'.
+ # It is safe to delete the contents: the tools regenerate it.
+ # (The old setting 'cache' is still respected if neither of
+ # these new ones is present.)
+ # N.B. If obtain_device_list_from_udev is set to 1 the list of
+ # devices is instead obtained from udev and any existing .cache
+ # file is removed.
+ cache_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_CACHE_SUBDIR@"
+ cache_file_prefix = ""
+
+ # You can turn off writing this cache file by setting this to 0.
+ write_cache_state = 1
+
+ # Advanced settings.
+
+ # List of pairs of additional acceptable block device types found
+ # in /proc/devices with maximum (non-zero) number of partitions.
+ # types = [ "fd", 16 ]
+
+ # If sysfs is mounted (2.6 kernels) restrict device scanning to
+ # the block devices it believes are valid.
+ # 1 enables; 0 disables.
+ sysfs_scan = 1
+
+ # By default, LVM2 will ignore devices used as component paths
+ # of device-mapper multipath devices.
+ # 1 enables; 0 disables.
+ multipath_component_detection = 1
+
+ # By default, LVM2 will ignore devices used as components of
+ # software RAID (md) devices by looking for md superblocks.
+ # 1 enables; 0 disables.
+ md_component_detection = 1
+
+ # By default, if a PV is placed directly upon an md device, LVM2
+ # will align its data blocks with the md device's stripe-width.
+ # 1 enables; 0 disables.
+ md_chunk_alignment = 1
+
+ # Default alignment of the start of a data area in MB. If set to 0,
+ # a value of 64KB will be used. Set to 1 for 1MiB, 2 for 2MiB, etc.
+ # default_data_alignment = @DEFAULT_DATA_ALIGNMENT@
+
+ # By default, the start of a PV's data area will be a multiple of
+ # the 'minimum_io_size' or 'optimal_io_size' exposed in sysfs.
+ # - minimum_io_size - the smallest request the device can perform
+ # w/o incurring a read-modify-write penalty (e.g. MD's chunk size)
+ # - optimal_io_size - the device's preferred unit of receiving I/O
+ # (e.g. MD's stripe width)
+ # minimum_io_size is used if optimal_io_size is undefined (0).
+ # If md_chunk_alignment is enabled, that detects the optimal_io_size.
+ # This setting takes precedence over md_chunk_alignment.
+ # 1 enables; 0 disables.
+ data_alignment_detection = 1
+
+ # Alignment (in KB) of start of data area when creating a new PV.
+ # md_chunk_alignment and data_alignment_detection are disabled if set.
+ # Set to 0 for the default alignment (see: data_alignment_default)
+ # or page size, if larger.
+ data_alignment = 0
+
+ # By default, the start of the PV's aligned data area will be shifted by
+ # the 'alignment_offset' exposed in sysfs. This offset is often 0 but
+ # may be non-zero; e.g.: certain 4KB sector drives that compensate for
+ # windows partitioning will have an alignment_offset of 3584 bytes
+ # (sector 7 is the lowest aligned logical block, the 4KB sectors start
+ # at LBA -1, and consequently sector 63 is aligned on a 4KB boundary).
+ # But note that pvcreate --dataalignmentoffset will skip this detection.
+ # 1 enables; 0 disables.
+ data_alignment_offset_detection = 1
+
+ # If, while scanning the system for PVs, LVM2 encounters a device-mapper
+ # device that has its I/O suspended, it waits for it to become accessible.
+ # Set this to 1 to skip such devices. This should only be needed
+ # in recovery situations.
+ ignore_suspended_devices = 0
+
+ # During each LVM operation errors received from each device are counted.
+ # If the counter of a particular device exceeds the limit set here, no
+ # further I/O is sent to that device for the remainder of the respective
+ # operation. Setting the parameter to 0 disables the counters altogether.
+ disable_after_error_count = 0
+
+ # Allow use of pvcreate --uuid without requiring --restorefile.
+ require_restorefile_with_uuid = 1
+
+ # Minimum size (in KB) of block devices which can be used as PVs.
+ # In a clustered environment all nodes must use the same value.
+ # Any value smaller than 512KB is ignored.
+
+ # Ignore devices smaller than 2MB such as floppy drives.
+ pv_min_size = 2048
+
+ # The original built-in setting was 512 up to and including version 2.02.84.
+ # pv_min_size = 512
+
+ # Issue discards to a logical volumes's underlying physical volume(s) when
+ # the logical volume is no longer using the physical volumes' space (e.g.
+ # lvremove, lvreduce, etc). Discards inform the storage that a region is
+ # no longer in use. Storage that supports discards advertise the protocol
+ # specific way discards should be issued by the kernel (TRIM, UNMAP, or
+ # WRITE SAME with UNMAP bit set). Not all storage will support or benefit
+ # from discards but SSDs and thinly provisioned LUNs generally do. If set
+ # to 1, discards will only be issued if both the storage and kernel provide
+ # support.
+ # 1 enables; 0 disables.
+ issue_discards = 0
+}
+
+# This section allows you to configure the way in which LVM selects
+# free space for its Logical Volumes.
+allocation {
+
+ # When searching for free space to extend an LV, the "cling"
+ # allocation policy will choose space on the same PVs as the last
+ # segment of the existing LV. If there is insufficient space and a
+ # list of tags is defined here, it will check whether any of them are
+ # attached to the PVs concerned and then seek to match those PV tags
+ # between existing extents and new extents.
+ # Use the special tag "@*" as a wildcard to match any PV tag.
+
+ # Example: LVs are mirrored between two sites within a single VG.
+ # PVs are tagged with either @site1 or @site2 to indicate where
+ # they are situated.
+
+ # cling_tag_list = [ "@site1", "@site2" ]
+ # cling_tag_list = [ "@*" ]
+
+ # Changes made in version 2.02.85 extended the reach of the 'cling'
+ # policies to detect more situations where data can be grouped
+ # onto the same disks. Set this to 0 to revert to the previous
+ # algorithm.
+ maximise_cling = 1
+
+ # Set to 1 to guarantee that mirror logs will always be placed on
+ # different PVs from the mirror images. This was the default
+ # until version 2.02.85.
+ mirror_logs_require_separate_pvs = 0
+
+ # Set to 1 to guarantee that thin pool metadata will always
+ # be placed on different PVs from the pool data.
+ thin_pool_metadata_require_separate_pvs = 0
+
+ # Specify the minimal chunk size (in KB) for thin pool volumes.
+ # Use of the larger chunk size may improve perfomance for plain
+ # thin volumes, however using them for snapshot volumes is less efficient,
+ # as it consumes more space and takes extra time for copying.
+ # When unset, lvm tries to estimate chunk size starting from 64KB
+ # Supported values are in range from 64 to 1048576.
+ # thin_pool_chunk_size = 64
+
+ # Specify discards behavior of the thin pool volume.
+ # Select one of "ignore", "nopassdown", "passdown"
+ # thin_pool_discards = "passdown"
+
+ # Set to 0, to disable zeroing of thin pool data chunks before their
+ # first use.
+ # N.B. zeroing larger thin pool chunk size degrades performance.
+ # thin_pool_zero = 1
+}
+
+# This section that allows you to configure the nature of the
+# information that LVM2 reports.
+log {
+
+ # Controls the messages sent to stdout or stderr.
+ # There are three levels of verbosity, 3 being the most verbose.
+ verbose = 0
+
+ # Set to 1 to suppress all non-essential messages from stdout.
+ # This has the same effect as -qq.
+ # When this is set, the following commands still produce output:
+ # dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
+ # pvs, version, vgcfgrestore -l, vgdisplay, vgs.
+ # Non-essential messages are shifted from log level 4 to log level 5
+ # for syslog and lvm2_log_fn purposes.
+ # Any 'yes' or 'no' questions not overridden by other arguments
+ # are suppressed and default to 'no'.
+ silent = 0
+
+ # Should we send log messages through syslog?
+ # 1 is yes; 0 is no.
+ syslog = 1
+
+ # Should we log error and debug messages to a file?
+ # By default there is no log file.
+ #file = "/var/log/lvm2.log"
+
+ # Should we overwrite the log file each time the program is run?
+ # By default we append.
+ overwrite = 0
+
+ # What level of log messages should we send to the log file and/or syslog?
+ # There are 6 syslog-like log levels currently in use - 2 to 7 inclusive.
+ # 7 is the most verbose (LOG_DEBUG).
+ level = 0
+
+ # Format of output messages
+ # Whether or not (1 or 0) to indent messages according to their severity
+ indent = 1
+
+ # Whether or not (1 or 0) to display the command name on each line output
+ command_names = 0
+
+ # A prefix to use before the message text (but after the command name,
+ # if selected). Default is two spaces, so you can see/grep the severity
+ # of each message.
+ prefix = " "
+
+ # To make the messages look similar to the original LVM tools use:
+ # indent = 0
+ # command_names = 1
+ # prefix = " -- "
+
+ # Set this if you want log messages during activation.
+ # Don't use this in low memory situations (can deadlock).
+ # activation = 0
+
+ # Some debugging messages are assigned to a class and only appear
+ # in debug output if the class is listed here.
+ # Classes currently available:
+ # memory, devices, activation, allocation, lvmetad, metadata, cache,
+ # locking
+ # Use "all" to see everything.
+ debug_classes = [ "memory", "devices", "activation", "allocation",
+ "lvmetad", "metadata", "cache", "locking" ]
+}
+
+# Configuration of metadata backups and archiving. In LVM2 when we
+# talk about a 'backup' we mean making a copy of the metadata for the
+# *current* system. The 'archive' contains old metadata configurations.
+# Backups are stored in a human readeable text format.
+backup {
+
+ # Should we maintain a backup of the current metadata configuration ?
+ # Use 1 for Yes; 0 for No.
+ # Think very hard before turning this off!
+ backup = 1
+
+ # Where shall we keep it ?
+ # Remember to back up this directory regularly!
+ backup_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_BACKUP_SUBDIR@"
+
+ # Should we maintain an archive of old metadata configurations.
+ # Use 1 for Yes; 0 for No.
+ # On by default. Think very hard before turning this off.
+ archive = 1
+
+ # Where should archived files go ?
+ # Remember to back up this directory regularly!
+ archive_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_ARCHIVE_SUBDIR@"
+
+ # What is the minimum number of archive files you wish to keep ?
+ retain_min = 10
+
+ # What is the minimum time you wish to keep an archive file for ?
+ retain_days = 30
+}
+
+# Settings for the running LVM2 in shell (readline) mode.
+shell {
+
+ # Number of lines of history to store in ~/.lvm_history
+ history_size = 100
+}
+
+
+# Miscellaneous global LVM2 settings
+global {
+ # The file creation mask for any files and directories created.
+ # Interpreted as octal if the first digit is zero.
+ umask = 077
+
+ # Allow other users to read the files
+ #umask = 022
+
+ # Enabling test mode means that no changes to the on disk metadata
+ # will be made. Equivalent to having the -t option on every
+ # command. Defaults to off.
+ test = 0
+
+ # Default value for --units argument
+ units = "h"
+
+ # Since version 2.02.54, the tools distinguish between powers of
+ # 1024 bytes (e.g. KiB, MiB, GiB) and powers of 1000 bytes (e.g.
+ # KB, MB, GB).
+ # If you have scripts that depend on the old behaviour, set this to 0
+ # temporarily until you update them.
+ si_unit_consistency = 1
+
+ # Whether or not to communicate with the kernel device-mapper.
+ # Set to 0 if you want to use the tools to manipulate LVM metadata
+ # without activating any logical volumes.
+ # If the device-mapper kernel driver is not present in your kernel
+ # setting this to 0 should suppress the error messages.
+ activation = 1
+
+ # If we can't communicate with device-mapper, should we try running
+ # the LVM1 tools?
+ # This option only applies to 2.4 kernels and is provided to help you
+ # switch between device-mapper kernels and LVM1 kernels.
+ # The LVM1 tools need to be installed with .lvm1 suffices
+ # e.g. vgscan.lvm1 and they will stop working after you start using
+ # the new lvm2 on-disk metadata format.
+ # The default value is set when the tools are built.
+ # fallback_to_lvm1 = 0
+
+ # The default metadata format that commands should use - "lvm1" or "lvm2".
+ # The command line override is -M1 or -M2.
+ # Defaults to "lvm2".
+ # format = "lvm2"
+
+ # Location of proc filesystem
+ proc = "/proc"
+
+ # Type of locking to use. Defaults to local file-based locking (1).
+ # Turn locking off by setting to 0 (dangerous: risks metadata corruption
+ # if LVM2 commands get run concurrently).
+ # Type 2 uses the external shared library locking_library.
+ # Type 3 uses built-in clustered locking.
+ # Type 4 uses read-only locking which forbids any operations that might
+ # change metadata.
+ locking_type = 1
+
+ # Set to 0 to fail when a lock request cannot be satisfied immediately.
+ wait_for_locks = 1
+
+ # If using external locking (type 2) and initialisation fails,
+ # with this set to 1 an attempt will be made to use the built-in
+ # clustered locking.
+ # If you are using a customised locking_library you should set this to 0.
+ fallback_to_clustered_locking = 1
+
+ # If an attempt to initialise type 2 or type 3 locking failed, perhaps
+ # because cluster components such as clvmd are not running, with this set
+ # to 1 an attempt will be made to use local file-based locking (type 1).
+ # If this succeeds, only commands against local volume groups will proceed.
+ # Volume Groups marked as clustered will be ignored.
+ fallback_to_local_locking = 1
+
+ # Local non-LV directory that holds file-based locks while commands are
+ # in progress. A directory like /tmp that may get wiped on reboot is OK.
+ locking_dir = "@DEFAULT_LOCK_DIR@"
+
+ # Whenever there are competing read-only and read-write access requests for
+ # a volume group's metadata, instead of always granting the read-only
+ # requests immediately, delay them to allow the read-write requests to be
+ # serviced. Without this setting, write access may be stalled by a high
+ # volume of read-only requests.
+ # NB. This option only affects locking_type = 1 viz. local file-based
+ # locking.
+ prioritise_write_locks = 1
+
+ # Other entries can go here to allow you to load shared libraries
+ # e.g. if support for LVM1 metadata was compiled as a shared library use
+ # format_libraries = "liblvm2format1.so"
+ # Full pathnames can be given.
+
+ # Search this directory first for shared libraries.
+ # library_dir = "/lib"
+
+ # The external locking library to load if locking_type is set to 2.
+ # locking_library = "liblvm2clusterlock.so"
+
+ # Treat any internal errors as fatal errors, aborting the process that
+ # encountered the internal error. Please only enable for debugging.
+ abort_on_internal_errors = 0
+
+ # Check whether CRC is matching when parsed VG is used multiple times.
+ # This is useful to catch unexpected internal cached volume group
+ # structure modification. Please only enable for debugging.
+ detect_internal_vg_cache_corruption = 0
+
+ # If set to 1, no operations that change on-disk metadata will be permitted.
+ # Additionally, read-only commands that encounter metadata in need of repair
+ # will still be allowed to proceed exactly as if the repair had been
+ # performed (except for the unchanged vg_seqno).
+ # Inappropriate use could mess up your system, so seek advice first!
+ metadata_read_only = 0
+
+ # 'mirror_segtype_default' defines which segtype will be used when the
+ # shorthand '-m' option is used for mirroring. The possible options are:
+ #
+ # "mirror" - The original RAID1 implementation provided by LVM2/DM. It is
+ # characterized by a flexible log solution (core, disk, mirrored)
+ # and by the necessity to block I/O while reconfiguring in the
+ # event of a failure.
+ #
+ # There is an inherent race in the dmeventd failure handling
+ # logic with snapshots of devices using this type of RAID1 that
+ # in the worst case could cause a deadlock.
+ # Ref: https://bugzilla.redhat.com/show_bug.cgi?id=817130#c10
+ #
+ # "raid1" - This implementation leverages MD's RAID1 personality through
+ # device-mapper. It is characterized by a lack of log options.
+ # (A log is always allocated for every device and they are placed
+ # on the same device as the image - no separate devices are
+ # required.) This mirror implementation does not require I/O
+ # to be blocked in the kernel in the event of a failure.
+ # This mirror implementation is not cluster-aware and cannot be
+ # used in a shared (active/active) fashion in a cluster.
+ #
+ # Specify the '--type <mirror|raid1>' option to override this default
+ # setting.
+ mirror_segtype_default = "mirror"
+
+ # 'raid10_segtype_default' determines the segment types used by default
+ # when the '--stripes/-i' and '--mirrors/-m' arguments are both specified
+ # during the creation of a logical volume.
+ # Possible settings include:
+ #
+ # "raid10" - This implementation leverages MD's RAID10 personality through
+ # device-mapper.
+ #
+ # "mirror" - LVM will layer the 'mirror' and 'stripe' segment types. It
+ # will do this by creating a mirror on top of striped sub-LVs;
+ # effectively creating a RAID 0+1 array. This is suboptimal
+ # in terms of providing redunancy and performance. Changing to
+ # this setting is not advised.
+ # Specify the '--type <raid10|mirror>' option to override this default
+ # setting.
+ raid10_segtype_default = "mirror"
+
+ # The default format for displaying LV names in lvdisplay was changed
+ # in version 2.02.89 to show the LV name and path separately.
+ # Previously this was always shown as /dev/vgname/lvname even when that
+ # was never a valid path in the /dev filesystem.
+ # Set to 1 to reinstate the previous format.
+ #
+ # lvdisplay_shows_full_device_path = 0
+
+ # Whether to use (trust) a running instance of lvmetad. If this is set to
+ # 0, all commands fall back to the usual scanning mechanisms. When set to 1
+ # *and* when lvmetad is running (it is not auto-started), the volume group
+ # metadata and PV state flags are obtained from the lvmetad instance and no
+ # scanning is done by the individual commands. In a setup with lvmetad,
+ # lvmetad udev rules *must* be set up for LVM to work correctly. Without
+ # proper udev rules, all changes in block device configuration will be
+ # *ignored* until a manual 'pvscan --cache' is performed.
+ #
+ # If lvmetad has been running while use_lvmetad was 0, it MUST be stopped
+ # before changing use_lvmetad to 1 and started again afterwards.
+ use_lvmetad = 0
+
+ # Full path of the utility called to check that a thin metadata device
+ # is in a state that allows it to be used.
+ # Each time a thin pool needs to be activated or after it is deactivated
+ # this utility is executed. The activation will only proceed if the utility
+ # has an exit status of 0.
+ # Set to "" to skip this check. (Not recommended.)
+ # The thin tools are available as part of the device-mapper-persistent-data
+ # package from https://github.com/jthornber/thin-provisioning-tools.
+ #
+ thin_check_executable = "@THIN_CHECK_CMD@"
+
+ # String with options passed with thin_check command. By default,
+ # option '-q' is for quiet output.
+ thin_check_options = [ "-q" ]
+
+ # If set, given features are not used by thin driver.
+ # This can be helpful not just for testing, but i.e. allows to avoid
+ # using problematic implementation of some thin feature.
+ # Features:
+ # block_size
+ # discards
+ # discards_non_power_2
+ #
+ # thin_disabled_features = [ "discards", "block_size" ]
+}
+
+activation {
+ # Set to 1 to perform internal checks on the operations issued to
+ # libdevmapper. Useful for debugging problems with activation.
+ # Some of the checks may be expensive, so it's best to use this
+ # only when there seems to be a problem.
+ checks = 0
+
+ # Set to 0 to disable udev synchronisation (if compiled into the binaries).
+ # Processes will not wait for notification from udev.
+ # They will continue irrespective of any possible udev processing
+ # in the background. You should only use this if udev is not running
+ # or has rules that ignore the devices LVM2 creates.
+ # The command line argument --nodevsync takes precedence over this setting.
+ # If set to 1 when udev is not running, and there are LVM2 processes
+ # waiting for udev, run 'dmsetup udevcomplete_all' manually to wake them up.
+ udev_sync = 1
+
+ # Set to 0 to disable the udev rules installed by LVM2 (if built with
+ # --enable-udev_rules). LVM2 will then manage the /dev nodes and symlinks
+ # for active logical volumes directly itself.
+ # N.B. Manual intervention may be required if this setting is changed
+ # while any logical volumes are active.
+ udev_rules = 1
+
+ # Set to 1 for LVM2 to verify operations performed by udev. This turns on
+ # additional checks (and if necessary, repairs) on entries in the device
+ # directory after udev has completed processing its events.
+ # Useful for diagnosing problems with LVM2/udev interactions.
+ verify_udev_operations = 0
+
+ # If set to 1 and if deactivation of an LV fails, perhaps because
+ # a process run from a quick udev rule temporarily opened the device,
+ # retry the operation for a few seconds before failing.
+ retry_deactivation = 1
+
+ # How to fill in missing stripes if activating an incomplete volume.
+ # Using "error" will make inaccessible parts of the device return
+ # I/O errors on access. You can instead use a device path, in which
+ # case, that device will be used to in place of missing stripes.
+ # But note that using anything other than "error" with mirrored
+ # or snapshotted volumes is likely to result in data corruption.
+ missing_stripe_filler = "error"
+
+ # The linear target is an optimised version of the striped target
+ # that only handles a single stripe. Set this to 0 to disable this
+ # optimisation and always use the striped target.
+ use_linear_target = 1
+
+ # How much stack (in KB) to reserve for use while devices suspended
+ # Prior to version 2.02.89 this used to be set to 256KB
+ reserved_stack = 64
+
+ # How much memory (in KB) to reserve for use while devices suspended
+ reserved_memory = 8192
+
+ # Nice value used while devices suspended
+ process_priority = -18
+
+ # If volume_list is defined, each LV is only activated if there is a
+ # match against the list.
+ #
+ # "vgname" and "vgname/lvname" are matched exactly.
+ # "@tag" matches any tag set in the LV or VG.
+ # "@*" matches if any tag defined on the host is also set in the LV or VG
+ #
+ # If any host tags exist but volume_list is not defined, a default
+ # single-entry list containing "@*" is assumed.
+ #
+ # volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
+
+ # If auto_activation_volume_list is defined, each LV that is to be
+ # activated with the autoactivation option (--activate ay/-a ay) is
+ # first checked against the list. There are two scenarios in which
+ # the autoactivation option is used:
+ #
+ # - automatic activation of volumes based on incoming PVs. If all the
+ # PVs making up a VG are present in the system, the autoactivation
+ # is triggered. This requires lvmetad (global/use_lvmetad=1) and udev
+ # to be running. In this case, "pvscan --cache -aay" is called
+ # automatically without any user intervention while processing
+ # udev events. Please, make sure you define auto_activation_volume_list
+ # properly so only the volumes you want and expect are autoactivated.
+ #
+ # - direct activation on command line with the autoactivation option.
+ # In this case, the user calls "vgchange --activate ay/-a ay" or
+ # "lvchange --activate ay/-a ay" directly.
+ #
+ # By default, the auto_activation_volume_list is not defined and all
+ # volumes will be activated either automatically or by using --activate ay/-a ay.
+ #
+ # N.B. The "activation/volume_list" is still honoured in all cases so even
+ # if the VG/LV passes the auto_activation_volume_list, it still needs to
+ # pass the volume_list for it to be activated in the end.
+
+ # If auto_activation_volume_list is defined but empty, no volumes will be
+ # activated automatically and --activate ay/-a ay will do nothing.
+ #
+ # auto_activation_volume_list = []
+
+ # If auto_activation_volume_list is defined and it's not empty, only matching
+ # volumes will be activated either automatically or by using --activate ay/-a ay.
+ #
+ # "vgname" and "vgname/lvname" are matched exactly.
+ # "@tag" matches any tag set in the LV or VG.
+ # "@*" matches if any tag defined on the host is also set in the LV or VG
+ #
+ # auto_activation_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
+
+ # If read_only_volume_list is defined, each LV that is to be activated
+ # is checked against the list, and if it matches, it as activated
+ # in read-only mode. (This overrides '--permission rw' stored in the
+ # metadata.)
+ #
+ # "vgname" and "vgname/lvname" are matched exactly.
+ # "@tag" matches any tag set in the LV or VG.
+ # "@*" matches if any tag defined on the host is also set in the LV or VG
+ #
+ # read_only_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
+
+ # For RAID or 'mirror' segment types, 'raid_region_size' is the
+ # size (in kiB) of each:
+ # - synchronization operation when initializing
+ # - each copy operation when performing a 'pvmove' (using 'mirror' segtype)
+ # This setting has replaced 'mirror_region_size' since version 2.02.99
+ raid_region_size = 512
+
+ # Setting to use when there is no readahead value stored in the metadata.
+ #
+ # "none" - Disable readahead.
+ # "auto" - Use default value chosen by kernel.
+ readahead = "auto"
+
+ # 'raid_fault_policy' defines how a device failure in a RAID logical
+ # volume is handled. This includes logical volumes that have the following
+ # segment types: raid1, raid4, raid5*, and raid6*.
+ #
+ # In the event of a failure, the following policies will determine what
+ # actions are performed during the automated response to failures (when
+ # dmeventd is monitoring the RAID logical volume) and when 'lvconvert' is
+ # called manually with the options '--repair' and '--use-policies'.
+ #
+ # "warn" - Use the system log to warn the user that a device in the RAID
+ # logical volume has failed. It is left to the user to run
+ # 'lvconvert --repair' manually to remove or replace the failed
+ # device. As long as the number of failed devices does not
+ # exceed the redundancy of the logical volume (1 device for
+ # raid4/5, 2 for raid6, etc) the logical volume will remain
+ # usable.
+ #
+ # "allocate" - Attempt to use any extra physical volumes in the volume
+ # group as spares and replace faulty devices.
+ #
+ raid_fault_policy = "warn"
+
+ # 'mirror_image_fault_policy' and 'mirror_log_fault_policy' define
+ # how a device failure affecting a mirror (of "mirror" segment type) is
+ # handled. A mirror is composed of mirror images (copies) and a log.
+ # A disk log ensures that a mirror does not need to be re-synced
+ # (all copies made the same) every time a machine reboots or crashes.
+ #
+ # In the event of a failure, the specified policy will be used to determine
+ # what happens. This applies to automatic repairs (when the mirror is being
+ # monitored by dmeventd) and to manual lvconvert --repair when
+ # --use-policies is given.
+ #
+ # "remove" - Simply remove the faulty device and run without it. If
+ # the log device fails, the mirror would convert to using
+ # an in-memory log. This means the mirror will not
+ # remember its sync status across crashes/reboots and
+ # the entire mirror will be re-synced. If a
+ # mirror image fails, the mirror will convert to a
+ # non-mirrored device if there is only one remaining good
+ # copy.
+ #
+ # "allocate" - Remove the faulty device and try to allocate space on
+ # a new device to be a replacement for the failed device.
+ # Using this policy for the log is fast and maintains the
+ # ability to remember sync state through crashes/reboots.
+ # Using this policy for a mirror device is slow, as it
+ # requires the mirror to resynchronize the devices, but it
+ # will preserve the mirror characteristic of the device.
+ # This policy acts like "remove" if no suitable device and
+ # space can be allocated for the replacement.
+ #
+ # "allocate_anywhere" - Not yet implemented. Useful to place the log device
+ # temporarily on same physical volume as one of the mirror
+ # images. This policy is not recommended for mirror devices
+ # since it would break the redundant nature of the mirror. This
+ # policy acts like "remove" if no suitable device and space can
+ # be allocated for the replacement.
+
+ mirror_log_fault_policy = "allocate"
+ mirror_image_fault_policy = "remove"
+
+ # 'snapshot_autoextend_threshold' and 'snapshot_autoextend_percent' define
+ # how to handle automatic snapshot extension. The former defines when the
+ # snapshot should be extended: when its space usage exceeds this many
+ # percent. The latter defines how much extra space should be allocated for
+ # the snapshot, in percent of its current size.
+ #
+ # For example, if you set snapshot_autoextend_threshold to 70 and
+ # snapshot_autoextend_percent to 20, whenever a snapshot exceeds 70% usage,
+ # it will be extended by another 20%. For a 1G snapshot, using up 700M will
+ # trigger a resize to 1.2G. When the usage exceeds 840M, the snapshot will
+ # be extended to 1.44G, and so on.
+ #
+ # Setting snapshot_autoextend_threshold to 100 disables automatic
+ # extensions. The minimum value is 50 (A setting below 50 will be treated
+ # as 50).
+
+ snapshot_autoextend_threshold = 100
+ snapshot_autoextend_percent = 20
+
+ # 'thin_pool_autoextend_threshold' and 'thin_pool_autoextend_percent' define
+ # how to handle automatic pool extension. The former defines when the
+ # pool should be extended: when its space usage exceeds this many
+ # percent. The latter defines how much extra space should be allocated for
+ # the pool, in percent of its current size.
+ #
+ # For example, if you set thin_pool_autoextend_threshold to 70 and
+ # thin_pool_autoextend_percent to 20, whenever a pool exceeds 70% usage,
+ # it will be extended by another 20%. For a 1G pool, using up 700M will
+ # trigger a resize to 1.2G. When the usage exceeds 840M, the pool will
+ # be extended to 1.44G, and so on.
+ #
+ # Setting thin_pool_autoextend_threshold to 100 disables automatic
+ # extensions. The minimum value is 50 (A setting below 50 will be treated
+ # as 50).
+
+ thin_pool_autoextend_threshold = 100
+ thin_pool_autoextend_percent = 20
+
+ # While activating devices, I/O to devices being (re)configured is
+ # suspended, and as a precaution against deadlocks, LVM2 needs to pin
+ # any memory it is using so it is not paged out. Groups of pages that
+ # are known not to be accessed during activation need not be pinned
+ # into memory. Each string listed in this setting is compared against
+ # each line in /proc/self/maps, and the pages corresponding to any
+ # lines that match are not pinned. On some systems locale-archive was
+ # found to make up over 80% of the memory used by the process.
+ # mlock_filter = [ "locale/locale-archive", "gconv/gconv-modules.cache" ]
+
+ # Set to 1 to revert to the default behaviour prior to version 2.02.62
+ # which used mlockall() to pin the whole process's memory while activating
+ # devices.
+ use_mlockall = 0
+
+ # Monitoring is enabled by default when activating logical volumes.
+ # Set to 0 to disable monitoring or use the --ignoremonitoring option.
+ monitoring = 1
+
+ # When pvmove or lvconvert must wait for the kernel to finish
+ # synchronising or merging data, they check and report progress
+ # at intervals of this number of seconds. The default is 15 seconds.
+ # If this is set to 0 and there is only one thing to wait for, there
+ # are no progress reports, but the process is awoken immediately the
+ # operation is complete.
+ polling_interval = 15
+}
+
+
+####################
+# Advanced section #
+####################
+
+# Metadata settings
+#
+# metadata {
+ # Default number of copies of metadata to hold on each PV. 0, 1 or 2.
+ # You might want to override it from the command line with 0
+ # when running pvcreate on new PVs which are to be added to large VGs.
+
+ # pvmetadatacopies = 1
+
+ # Default number of copies of metadata to maintain for each VG.
+ # If set to a non-zero value, LVM automatically chooses which of
+ # the available metadata areas to use to achieve the requested
+ # number of copies of the VG metadata. If you set a value larger
+ # than the the total number of metadata areas available then
+ # metadata is stored in them all.
+ # The default value of 0 ("unmanaged") disables this automatic
+ # management and allows you to control which metadata areas
+ # are used at the individual PV level using 'pvchange
+ # --metadataignore y/n'.
+
+ # vgmetadatacopies = 0
+
+ # Approximate default size of on-disk metadata areas in sectors.
+ # You should increase this if you have large volume groups or
+ # you want to retain a large on-disk history of your metadata changes.
+
+ # pvmetadatasize = 255
+
+ # List of directories holding live copies of text format metadata.
+ # These directories must not be on logical volumes!
+ # It's possible to use LVM2 with a couple of directories here,
+ # preferably on different (non-LV) filesystems, and with no other
+ # on-disk metadata (pvmetadatacopies = 0). Or this can be in
+ # addition to on-disk metadata areas.
+ # The feature was originally added to simplify testing and is not
+ # supported under low memory situations - the machine could lock up.
+ #
+ # Never edit any files in these directories by hand unless you
+ # you are absolutely sure you know what you are doing! Use
+ # the supplied toolset to make changes (e.g. vgcfgrestore).
+
+ # dirs = [ "/etc/lvm/metadata", "/mnt/disk2/lvm/metadata2" ]
+#}
+
+# Event daemon
+#
+dmeventd {
+ # mirror_library is the library used when monitoring a mirror device.
+ #
+ # "libdevmapper-event-lvm2mirror.so" attempts to recover from
+ # failures. It removes failed devices from a volume group and
+ # reconfigures a mirror as necessary. If no mirror library is
+ # provided, mirrors are not monitored through dmeventd.
+
+ mirror_library = "libdevmapper-event-lvm2mirror.so"
+
+ # snapshot_library is the library used when monitoring a snapshot device.
+ #
+ # "libdevmapper-event-lvm2snapshot.so" monitors the filling of
+ # snapshots and emits a warning through syslog when the use of
+ # the snapshot exceeds 80%. The warning is repeated when 85%, 90% and
+ # 95% of the snapshot is filled.
+
+ snapshot_library = "libdevmapper-event-lvm2snapshot.so"
+
+ # thin_library is the library used when monitoring a thin device.
+ #
+ # "libdevmapper-event-lvm2thin.so" monitors the filling of
+ # pool and emits a warning through syslog when the use of
+ # the pool exceeds 80%. The warning is repeated when 85%, 90% and
+ # 95% of the pool is filled.
+
+ thin_library = "libdevmapper-event-lvm2thin.so"
+
+ # Full path of the dmeventd binary.
+ #
+ # executable = "@DMEVENTD_PATH@"
+}
diff --git a/configure b/configure
index 8a1db74..aeb2b46 100755
--- a/configure
+++ b/configure
@@ -10810,7 +10810,7 @@ LVM_LIBAPI=`echo "$VER" | $AWK -F '[()]' '{print $2}'`
################################################################################
-ac_config_files="$ac_config_files Makefile make.tmpl daemons/Makefile daemons/clvmd/Makefile daemons/cmirrord/Makefile daemons/dmeventd/Makefile daemons/dmeventd/libdevmapper-event.pc daemons/dmeventd/plugins/Makefile daemons/dmeventd/plugins/lvm2/Makefile daemons/dmeventd/plugins/raid/Makefile daemons/dmeventd/plugins/mirror/Makefile daemons/dmeventd/plugins/snapshot/Makefile daemons/dmeventd/plugins/thin/Makefile daemons/lvmetad/Makefile doc/Makefile doc/example.conf include/.symlinks include/Makefile lib/Makefile lib/format1/Makefile lib/format_pool/Makefile lib/locking/Makefile lib/mirror/Makefile lib/replicator/Makefile lib/misc/lvm-version.h lib/raid/Makefile lib/snapshot/Makefile lib/thin/Makefile libdaemon/Makefile libdaemon/client/Makefile libdaemon/server/Makefile libdm/Makefile libdm/libdevmapper.pc liblvm/Makefile liblvm/liblvm2app.pc man/Makefile po/Makefile python/Makefile python/setup.py scripts/blkdeactivate.sh scripts/blk_availability_init_red_hat scripts/bl
k_availability_systemd_red_hat.service scripts/clvmd_init_red_hat scripts/cmirrord_init_red_hat scripts/lvm2_lvmetad_init_red_hat scripts/lvm2_lvmetad_systemd_red_hat.socket scripts/lvm2_lvmetad_systemd_red_hat.service scripts/lvm2_monitoring_init_red_hat scripts/dm_event_systemd_red_hat.socket scripts/dm_event_systemd_red_hat.service scripts/lvm2_monitoring_systemd_red_hat.service scripts/lvm2_tmpfiles_red_hat.conf scripts/Makefile test/Makefile test/api/Makefile test/unit/Makefile tools/Makefile udev/Makefile unit-tests/datastruct/Makefile unit-tests/regex/Makefile unit-tests/mm/Makefile"
+ac_config_files="$ac_config_files Makefile make.tmpl daemons/Makefile daemons/clvmd/Makefile daemons/cmirrord/Makefile daemons/dmeventd/Makefile daemons/dmeventd/libdevmapper-event.pc daemons/dmeventd/plugins/Makefile daemons/dmeventd/plugins/lvm2/Makefile daemons/dmeventd/plugins/raid/Makefile daemons/dmeventd/plugins/mirror/Makefile daemons/dmeventd/plugins/snapshot/Makefile daemons/dmeventd/plugins/thin/Makefile daemons/lvmetad/Makefile conf/Makefile conf/example.conf include/.symlinks include/Makefile lib/Makefile lib/format1/Makefile lib/format_pool/Makefile lib/locking/Makefile lib/mirror/Makefile lib/replicator/Makefile lib/misc/lvm-version.h lib/raid/Makefile lib/snapshot/Makefile lib/thin/Makefile libdaemon/Makefile libdaemon/client/Makefile libdaemon/server/Makefile libdm/Makefile libdm/libdevmapper.pc liblvm/Makefile liblvm/liblvm2app.pc man/Makefile po/Makefile python/Makefile python/setup.py scripts/blkdeactivate.sh scripts/blk_availability_init_red_hat scripts/
blk_availability_systemd_red_hat.service scripts/clvmd_init_red_hat scripts/cmirrord_init_red_hat scripts/lvm2_lvmetad_init_red_hat scripts/lvm2_lvmetad_systemd_red_hat.socket scripts/lvm2_lvmetad_systemd_red_hat.service scripts/lvm2_monitoring_init_red_hat scripts/dm_event_systemd_red_hat.socket scripts/dm_event_systemd_red_hat.service scripts/lvm2_monitoring_systemd_red_hat.service scripts/lvm2_tmpfiles_red_hat.conf scripts/Makefile test/Makefile test/api/Makefile test/unit/Makefile tools/Makefile udev/Makefile unit-tests/datastruct/Makefile unit-tests/regex/Makefile unit-tests/mm/Makefile"
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
@@ -11513,8 +11513,8 @@ do
"daemons/dmeventd/plugins/snapshot/Makefile") CONFIG_FILES="$CONFIG_FILES daemons/dmeventd/plugins/snapshot/Makefile" ;;
"daemons/dmeventd/plugins/thin/Makefile") CONFIG_FILES="$CONFIG_FILES daemons/dmeventd/plugins/thin/Makefile" ;;
"daemons/lvmetad/Makefile") CONFIG_FILES="$CONFIG_FILES daemons/lvmetad/Makefile" ;;
- "doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
- "doc/example.conf") CONFIG_FILES="$CONFIG_FILES doc/example.conf" ;;
+ "conf/Makefile") CONFIG_FILES="$CONFIG_FILES conf/Makefile" ;;
+ "conf/example.conf") CONFIG_FILES="$CONFIG_FILES conf/example.conf" ;;
"include/.symlinks") CONFIG_FILES="$CONFIG_FILES include/.symlinks" ;;
"include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;;
"lib/Makefile") CONFIG_FILES="$CONFIG_FILES lib/Makefile" ;;
diff --git a/configure.in b/configure.in
index d90eb1a..77a0503 100644
--- a/configure.in
+++ b/configure.in
@@ -1640,8 +1640,8 @@ daemons/dmeventd/plugins/mirror/Makefile
daemons/dmeventd/plugins/snapshot/Makefile
daemons/dmeventd/plugins/thin/Makefile
daemons/lvmetad/Makefile
-doc/Makefile
-doc/example.conf
+conf/Makefile
+conf/example.conf
include/.symlinks
include/Makefile
lib/Makefile
diff --git a/doc/Makefile.in b/doc/Makefile.in
deleted file mode 100644
index c63e3ce..0000000
--- a/doc/Makefile.in
+++ /dev/null
@@ -1,31 +0,0 @@
-#
-# Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
-#
-# This file is part of LVM2.
-#
-# This copyrighted material is made available to anyone wishing to use,
-# modify, copy, or redistribute it subject to the terms and conditions
-# of the GNU General Public License v.2.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-srcdir = @srcdir@
-top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
-
-CONFSRC=example.conf
-CONFDEST=lvm.conf
-
-include $(top_builddir)/make.tmpl
-
-install_lvm2: $(CONFSRC)
- @if [ ! -e $(confdir)/$(CONFDEST) ]; then \
- echo "$(INSTALL_WDATA) -D $< $(confdir)/$(CONFDEST)"; \
- $(INSTALL_WDATA) -D $< $(confdir)/$(CONFDEST); \
- fi
-
-install: install_lvm2
-
-DISTCLEAN_TARGETS += $(CONFSRC)
diff --git a/doc/example.conf.in b/doc/example.conf.in
deleted file mode 100644
index 3bc8c3c..0000000
--- a/doc/example.conf.in
+++ /dev/null
@@ -1,923 +0,0 @@
-# This is an example configuration file for the LVM2 system.
-# It contains the default settings that would be used if there was no
-# @DEFAULT_SYS_DIR@/lvm.conf file.
-#
-# Refer to 'man lvm.conf' for further information including the file layout.
-#
-# To put this file in a different directory and override @DEFAULT_SYS_DIR@ set
-# the environment variable LVM_SYSTEM_DIR before running the tools.
-#
-# N.B. Take care that each setting only appears once if uncommenting
-# example settings in this file.
-
-# This section allows you to set the way the configuration settings are handled.
-config {
-
- # If enabled, any LVM2 configuration mismatch is reported.
- # This implies checking that the configuration key is understood
- # by LVM2 and that the value of the key is of a proper type.
- # If disabled, any configuration mismatch is ignored and default
- # value is used instead without any warning (a message about the
- # configuration key not being found is issued in verbose mode only).
- checks = 1
-
- # If enabled, any configuration mismatch aborts the LVM2 process.
- abort_on_errors = 0
-
- # Directory where LVM looks for configuration profiles.
- profile_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_PROFILE_SUBDIR"
-}
-
-# This section allows you to configure which block devices should
-# be used by the LVM system.
-devices {
-
- # Where do you want your volume groups to appear ?
- dir = "/dev"
-
- # An array of directories that contain the device nodes you wish
- # to use with LVM2.
- scan = [ "/dev" ]
-
- # If set, the cache of block device nodes with all associated symlinks
- # will be constructed out of the existing udev database content.
- # This avoids using and opening any inapplicable non-block devices or
- # subdirectories found in the device directory. This setting is applied
- # to udev-managed device directory only, other directories will be scanned
- # fully. LVM2 needs to be compiled with udev support for this setting to
- # take effect. N.B. Any device node or symlink not managed by udev in
- # udev directory will be ignored with this setting on.
- obtain_device_list_from_udev = 1
-
- # If several entries in the scanned directories correspond to the
- # same block device and the tools need to display a name for device,
- # all the pathnames are matched against each item in the following
- # list of regular expressions in turn and the first match is used.
- preferred_names = [ ]
-
- # Try to avoid using undescriptive /dev/dm-N names, if present.
- # preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ]
-
- # A filter that tells LVM2 to only use a restricted set of devices.
- # The filter consists of an array of regular expressions. These
- # expressions can be delimited by a character of your choice, and
- # prefixed with either an 'a' (for accept) or 'r' (for reject).
- # The first expression found to match a device name determines if
- # the device will be accepted or rejected (ignored). Devices that
- # don't match any patterns are accepted.
-
- # Be careful if there there are symbolic links or multiple filesystem
- # entries for the same device as each name is checked separately against
- # the list of patterns. The effect is that if the first pattern in the
- # list to match a name is an 'a' pattern for any of the names, the device
- # is accepted; otherwise if the first pattern in the list to match a name
- # is an 'r' pattern for any of the names it is rejected; otherwise it is
- # accepted.
-
- # Don't have more than one filter line active at once: only one gets used.
-
- # Run vgscan after you change this parameter to ensure that
- # the cache file gets regenerated (see below).
- # If it doesn't do what you expect, check the output of 'vgscan -vvvv'.
-
-
- # By default we accept every block device:
- filter = [ "a/.*/" ]
-
- # Exclude the cdrom drive
- # filter = [ "r|/dev/cdrom|" ]
-
- # When testing I like to work with just loopback devices:
- # filter = [ "a/loop/", "r/.*/" ]
-
- # Or maybe all loops and ide drives except hdc:
- # filter =[ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
-
- # Use anchors if you want to be really specific
- # filter = [ "a|^/dev/hda8$|", "r/.*/" ]
-
- # Since "filter" is often overridden from command line, it is not suitable
- # for system-wide device filtering (udev rules, lvmetad). To hide devices
- # from LVM-specific udev processing and/or from lvmetad, you need to set
- # global_filter. The syntax is the same as for normal "filter"
- # above. Devices that fail the global_filter are not even opened by LVM.
-
- # global_filter = []
-
- # The results of the filtering are cached on disk to avoid
- # rescanning dud devices (which can take a very long time).
- # By default this cache is stored in the @DEFAULT_SYS_DIR@/@DEFAULT_CACHE_SUBDIR@ directory
- # in a file called '.cache'.
- # It is safe to delete the contents: the tools regenerate it.
- # (The old setting 'cache' is still respected if neither of
- # these new ones is present.)
- # N.B. If obtain_device_list_from_udev is set to 1 the list of
- # devices is instead obtained from udev and any existing .cache
- # file is removed.
- cache_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_CACHE_SUBDIR@"
- cache_file_prefix = ""
-
- # You can turn off writing this cache file by setting this to 0.
- write_cache_state = 1
-
- # Advanced settings.
-
- # List of pairs of additional acceptable block device types found
- # in /proc/devices with maximum (non-zero) number of partitions.
- # types = [ "fd", 16 ]
-
- # If sysfs is mounted (2.6 kernels) restrict device scanning to
- # the block devices it believes are valid.
- # 1 enables; 0 disables.
- sysfs_scan = 1
-
- # By default, LVM2 will ignore devices used as component paths
- # of device-mapper multipath devices.
- # 1 enables; 0 disables.
- multipath_component_detection = 1
-
- # By default, LVM2 will ignore devices used as components of
- # software RAID (md) devices by looking for md superblocks.
- # 1 enables; 0 disables.
- md_component_detection = 1
-
- # By default, if a PV is placed directly upon an md device, LVM2
- # will align its data blocks with the md device's stripe-width.
- # 1 enables; 0 disables.
- md_chunk_alignment = 1
-
- # Default alignment of the start of a data area in MB. If set to 0,
- # a value of 64KB will be used. Set to 1 for 1MiB, 2 for 2MiB, etc.
- # default_data_alignment = @DEFAULT_DATA_ALIGNMENT@
-
- # By default, the start of a PV's data area will be a multiple of
- # the 'minimum_io_size' or 'optimal_io_size' exposed in sysfs.
- # - minimum_io_size - the smallest request the device can perform
- # w/o incurring a read-modify-write penalty (e.g. MD's chunk size)
- # - optimal_io_size - the device's preferred unit of receiving I/O
- # (e.g. MD's stripe width)
- # minimum_io_size is used if optimal_io_size is undefined (0).
- # If md_chunk_alignment is enabled, that detects the optimal_io_size.
- # This setting takes precedence over md_chunk_alignment.
- # 1 enables; 0 disables.
- data_alignment_detection = 1
-
- # Alignment (in KB) of start of data area when creating a new PV.
- # md_chunk_alignment and data_alignment_detection are disabled if set.
- # Set to 0 for the default alignment (see: data_alignment_default)
- # or page size, if larger.
- data_alignment = 0
-
- # By default, the start of the PV's aligned data area will be shifted by
- # the 'alignment_offset' exposed in sysfs. This offset is often 0 but
- # may be non-zero; e.g.: certain 4KB sector drives that compensate for
- # windows partitioning will have an alignment_offset of 3584 bytes
- # (sector 7 is the lowest aligned logical block, the 4KB sectors start
- # at LBA -1, and consequently sector 63 is aligned on a 4KB boundary).
- # But note that pvcreate --dataalignmentoffset will skip this detection.
- # 1 enables; 0 disables.
- data_alignment_offset_detection = 1
-
- # If, while scanning the system for PVs, LVM2 encounters a device-mapper
- # device that has its I/O suspended, it waits for it to become accessible.
- # Set this to 1 to skip such devices. This should only be needed
- # in recovery situations.
- ignore_suspended_devices = 0
-
- # During each LVM operation errors received from each device are counted.
- # If the counter of a particular device exceeds the limit set here, no
- # further I/O is sent to that device for the remainder of the respective
- # operation. Setting the parameter to 0 disables the counters altogether.
- disable_after_error_count = 0
-
- # Allow use of pvcreate --uuid without requiring --restorefile.
- require_restorefile_with_uuid = 1
-
- # Minimum size (in KB) of block devices which can be used as PVs.
- # In a clustered environment all nodes must use the same value.
- # Any value smaller than 512KB is ignored.
-
- # Ignore devices smaller than 2MB such as floppy drives.
- pv_min_size = 2048
-
- # The original built-in setting was 512 up to and including version 2.02.84.
- # pv_min_size = 512
-
- # Issue discards to a logical volumes's underlying physical volume(s) when
- # the logical volume is no longer using the physical volumes' space (e.g.
- # lvremove, lvreduce, etc). Discards inform the storage that a region is
- # no longer in use. Storage that supports discards advertise the protocol
- # specific way discards should be issued by the kernel (TRIM, UNMAP, or
- # WRITE SAME with UNMAP bit set). Not all storage will support or benefit
- # from discards but SSDs and thinly provisioned LUNs generally do. If set
- # to 1, discards will only be issued if both the storage and kernel provide
- # support.
- # 1 enables; 0 disables.
- issue_discards = 0
-}
-
-# This section allows you to configure the way in which LVM selects
-# free space for its Logical Volumes.
-allocation {
-
- # When searching for free space to extend an LV, the "cling"
- # allocation policy will choose space on the same PVs as the last
- # segment of the existing LV. If there is insufficient space and a
- # list of tags is defined here, it will check whether any of them are
- # attached to the PVs concerned and then seek to match those PV tags
- # between existing extents and new extents.
- # Use the special tag "@*" as a wildcard to match any PV tag.
-
- # Example: LVs are mirrored between two sites within a single VG.
- # PVs are tagged with either @site1 or @site2 to indicate where
- # they are situated.
-
- # cling_tag_list = [ "@site1", "@site2" ]
- # cling_tag_list = [ "@*" ]
-
- # Changes made in version 2.02.85 extended the reach of the 'cling'
- # policies to detect more situations where data can be grouped
- # onto the same disks. Set this to 0 to revert to the previous
- # algorithm.
- maximise_cling = 1
-
- # Set to 1 to guarantee that mirror logs will always be placed on
- # different PVs from the mirror images. This was the default
- # until version 2.02.85.
- mirror_logs_require_separate_pvs = 0
-
- # Set to 1 to guarantee that thin pool metadata will always
- # be placed on different PVs from the pool data.
- thin_pool_metadata_require_separate_pvs = 0
-
- # Specify the minimal chunk size (in KB) for thin pool volumes.
- # Use of the larger chunk size may improve perfomance for plain
- # thin volumes, however using them for snapshot volumes is less efficient,
- # as it consumes more space and takes extra time for copying.
- # When unset, lvm tries to estimate chunk size starting from 64KB
- # Supported values are in range from 64 to 1048576.
- # thin_pool_chunk_size = 64
-
- # Specify discards behavior of the thin pool volume.
- # Select one of "ignore", "nopassdown", "passdown"
- # thin_pool_discards = "passdown"
-
- # Set to 0, to disable zeroing of thin pool data chunks before their
- # first use.
- # N.B. zeroing larger thin pool chunk size degrades performance.
- # thin_pool_zero = 1
-}
-
-# This section that allows you to configure the nature of the
-# information that LVM2 reports.
-log {
-
- # Controls the messages sent to stdout or stderr.
- # There are three levels of verbosity, 3 being the most verbose.
- verbose = 0
-
- # Set to 1 to suppress all non-essential messages from stdout.
- # This has the same effect as -qq.
- # When this is set, the following commands still produce output:
- # dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
- # pvs, version, vgcfgrestore -l, vgdisplay, vgs.
- # Non-essential messages are shifted from log level 4 to log level 5
- # for syslog and lvm2_log_fn purposes.
- # Any 'yes' or 'no' questions not overridden by other arguments
- # are suppressed and default to 'no'.
- silent = 0
-
- # Should we send log messages through syslog?
- # 1 is yes; 0 is no.
- syslog = 1
-
- # Should we log error and debug messages to a file?
- # By default there is no log file.
- #file = "/var/log/lvm2.log"
-
- # Should we overwrite the log file each time the program is run?
- # By default we append.
- overwrite = 0
-
- # What level of log messages should we send to the log file and/or syslog?
- # There are 6 syslog-like log levels currently in use - 2 to 7 inclusive.
- # 7 is the most verbose (LOG_DEBUG).
- level = 0
-
- # Format of output messages
- # Whether or not (1 or 0) to indent messages according to their severity
- indent = 1
-
- # Whether or not (1 or 0) to display the command name on each line output
- command_names = 0
-
- # A prefix to use before the message text (but after the command name,
- # if selected). Default is two spaces, so you can see/grep the severity
- # of each message.
- prefix = " "
-
- # To make the messages look similar to the original LVM tools use:
- # indent = 0
- # command_names = 1
- # prefix = " -- "
-
- # Set this if you want log messages during activation.
- # Don't use this in low memory situations (can deadlock).
- # activation = 0
-
- # Some debugging messages are assigned to a class and only appear
- # in debug output if the class is listed here.
- # Classes currently available:
- # memory, devices, activation, allocation, lvmetad, metadata, cache,
- # locking
- # Use "all" to see everything.
- debug_classes = [ "memory", "devices", "activation", "allocation",
- "lvmetad", "metadata", "cache", "locking" ]
-}
-
-# Configuration of metadata backups and archiving. In LVM2 when we
-# talk about a 'backup' we mean making a copy of the metadata for the
-# *current* system. The 'archive' contains old metadata configurations.
-# Backups are stored in a human readeable text format.
-backup {
-
- # Should we maintain a backup of the current metadata configuration ?
- # Use 1 for Yes; 0 for No.
- # Think very hard before turning this off!
- backup = 1
-
- # Where shall we keep it ?
- # Remember to back up this directory regularly!
- backup_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_BACKUP_SUBDIR@"
-
- # Should we maintain an archive of old metadata configurations.
- # Use 1 for Yes; 0 for No.
- # On by default. Think very hard before turning this off.
- archive = 1
-
- # Where should archived files go ?
- # Remember to back up this directory regularly!
- archive_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_ARCHIVE_SUBDIR@"
-
- # What is the minimum number of archive files you wish to keep ?
- retain_min = 10
-
- # What is the minimum time you wish to keep an archive file for ?
- retain_days = 30
-}
-
-# Settings for the running LVM2 in shell (readline) mode.
-shell {
-
- # Number of lines of history to store in ~/.lvm_history
- history_size = 100
-}
-
-
-# Miscellaneous global LVM2 settings
-global {
- # The file creation mask for any files and directories created.
- # Interpreted as octal if the first digit is zero.
- umask = 077
-
- # Allow other users to read the files
- #umask = 022
-
- # Enabling test mode means that no changes to the on disk metadata
- # will be made. Equivalent to having the -t option on every
- # command. Defaults to off.
- test = 0
-
- # Default value for --units argument
- units = "h"
-
- # Since version 2.02.54, the tools distinguish between powers of
- # 1024 bytes (e.g. KiB, MiB, GiB) and powers of 1000 bytes (e.g.
- # KB, MB, GB).
- # If you have scripts that depend on the old behaviour, set this to 0
- # temporarily until you update them.
- si_unit_consistency = 1
-
- # Whether or not to communicate with the kernel device-mapper.
- # Set to 0 if you want to use the tools to manipulate LVM metadata
- # without activating any logical volumes.
- # If the device-mapper kernel driver is not present in your kernel
- # setting this to 0 should suppress the error messages.
- activation = 1
-
- # If we can't communicate with device-mapper, should we try running
- # the LVM1 tools?
- # This option only applies to 2.4 kernels and is provided to help you
- # switch between device-mapper kernels and LVM1 kernels.
- # The LVM1 tools need to be installed with .lvm1 suffices
- # e.g. vgscan.lvm1 and they will stop working after you start using
- # the new lvm2 on-disk metadata format.
- # The default value is set when the tools are built.
- # fallback_to_lvm1 = 0
-
- # The default metadata format that commands should use - "lvm1" or "lvm2".
- # The command line override is -M1 or -M2.
- # Defaults to "lvm2".
- # format = "lvm2"
-
- # Location of proc filesystem
- proc = "/proc"
-
- # Type of locking to use. Defaults to local file-based locking (1).
- # Turn locking off by setting to 0 (dangerous: risks metadata corruption
- # if LVM2 commands get run concurrently).
- # Type 2 uses the external shared library locking_library.
- # Type 3 uses built-in clustered locking.
- # Type 4 uses read-only locking which forbids any operations that might
- # change metadata.
- locking_type = 1
-
- # Set to 0 to fail when a lock request cannot be satisfied immediately.
- wait_for_locks = 1
-
- # If using external locking (type 2) and initialisation fails,
- # with this set to 1 an attempt will be made to use the built-in
- # clustered locking.
- # If you are using a customised locking_library you should set this to 0.
- fallback_to_clustered_locking = 1
-
- # If an attempt to initialise type 2 or type 3 locking failed, perhaps
- # because cluster components such as clvmd are not running, with this set
- # to 1 an attempt will be made to use local file-based locking (type 1).
- # If this succeeds, only commands against local volume groups will proceed.
- # Volume Groups marked as clustered will be ignored.
- fallback_to_local_locking = 1
-
- # Local non-LV directory that holds file-based locks while commands are
- # in progress. A directory like /tmp that may get wiped on reboot is OK.
- locking_dir = "@DEFAULT_LOCK_DIR@"
-
- # Whenever there are competing read-only and read-write access requests for
- # a volume group's metadata, instead of always granting the read-only
- # requests immediately, delay them to allow the read-write requests to be
- # serviced. Without this setting, write access may be stalled by a high
- # volume of read-only requests.
- # NB. This option only affects locking_type = 1 viz. local file-based
- # locking.
- prioritise_write_locks = 1
-
- # Other entries can go here to allow you to load shared libraries
- # e.g. if support for LVM1 metadata was compiled as a shared library use
- # format_libraries = "liblvm2format1.so"
- # Full pathnames can be given.
-
- # Search this directory first for shared libraries.
- # library_dir = "/lib"
-
- # The external locking library to load if locking_type is set to 2.
- # locking_library = "liblvm2clusterlock.so"
-
- # Treat any internal errors as fatal errors, aborting the process that
- # encountered the internal error. Please only enable for debugging.
- abort_on_internal_errors = 0
-
- # Check whether CRC is matching when parsed VG is used multiple times.
- # This is useful to catch unexpected internal cached volume group
- # structure modification. Please only enable for debugging.
- detect_internal_vg_cache_corruption = 0
-
- # If set to 1, no operations that change on-disk metadata will be permitted.
- # Additionally, read-only commands that encounter metadata in need of repair
- # will still be allowed to proceed exactly as if the repair had been
- # performed (except for the unchanged vg_seqno).
- # Inappropriate use could mess up your system, so seek advice first!
- metadata_read_only = 0
-
- # 'mirror_segtype_default' defines which segtype will be used when the
- # shorthand '-m' option is used for mirroring. The possible options are:
- #
- # "mirror" - The original RAID1 implementation provided by LVM2/DM. It is
- # characterized by a flexible log solution (core, disk, mirrored)
- # and by the necessity to block I/O while reconfiguring in the
- # event of a failure.
- #
- # There is an inherent race in the dmeventd failure handling
- # logic with snapshots of devices using this type of RAID1 that
- # in the worst case could cause a deadlock.
- # Ref: https://bugzilla.redhat.com/show_bug.cgi?id=817130#c10
- #
- # "raid1" - This implementation leverages MD's RAID1 personality through
- # device-mapper. It is characterized by a lack of log options.
- # (A log is always allocated for every device and they are placed
- # on the same device as the image - no separate devices are
- # required.) This mirror implementation does not require I/O
- # to be blocked in the kernel in the event of a failure.
- # This mirror implementation is not cluster-aware and cannot be
- # used in a shared (active/active) fashion in a cluster.
- #
- # Specify the '--type <mirror|raid1>' option to override this default
- # setting.
- mirror_segtype_default = "mirror"
-
- # 'raid10_segtype_default' determines the segment types used by default
- # when the '--stripes/-i' and '--mirrors/-m' arguments are both specified
- # during the creation of a logical volume.
- # Possible settings include:
- #
- # "raid10" - This implementation leverages MD's RAID10 personality through
- # device-mapper.
- #
- # "mirror" - LVM will layer the 'mirror' and 'stripe' segment types. It
- # will do this by creating a mirror on top of striped sub-LVs;
- # effectively creating a RAID 0+1 array. This is suboptimal
- # in terms of providing redunancy and performance. Changing to
- # this setting is not advised.
- # Specify the '--type <raid10|mirror>' option to override this default
- # setting.
- raid10_segtype_default = "mirror"
-
- # The default format for displaying LV names in lvdisplay was changed
- # in version 2.02.89 to show the LV name and path separately.
- # Previously this was always shown as /dev/vgname/lvname even when that
- # was never a valid path in the /dev filesystem.
- # Set to 1 to reinstate the previous format.
- #
- # lvdisplay_shows_full_device_path = 0
-
- # Whether to use (trust) a running instance of lvmetad. If this is set to
- # 0, all commands fall back to the usual scanning mechanisms. When set to 1
- # *and* when lvmetad is running (it is not auto-started), the volume group
- # metadata and PV state flags are obtained from the lvmetad instance and no
- # scanning is done by the individual commands. In a setup with lvmetad,
- # lvmetad udev rules *must* be set up for LVM to work correctly. Without
- # proper udev rules, all changes in block device configuration will be
- # *ignored* until a manual 'pvscan --cache' is performed.
- #
- # If lvmetad has been running while use_lvmetad was 0, it MUST be stopped
- # before changing use_lvmetad to 1 and started again afterwards.
- use_lvmetad = 0
-
- # Full path of the utility called to check that a thin metadata device
- # is in a state that allows it to be used.
- # Each time a thin pool needs to be activated or after it is deactivated
- # this utility is executed. The activation will only proceed if the utility
- # has an exit status of 0.
- # Set to "" to skip this check. (Not recommended.)
- # The thin tools are available as part of the device-mapper-persistent-data
- # package from https://github.com/jthornber/thin-provisioning-tools.
- #
- thin_check_executable = "@THIN_CHECK_CMD@"
-
- # String with options passed with thin_check command. By default,
- # option '-q' is for quiet output.
- thin_check_options = [ "-q" ]
-
- # If set, given features are not used by thin driver.
- # This can be helpful not just for testing, but i.e. allows to avoid
- # using problematic implementation of some thin feature.
- # Features:
- # block_size
- # discards
- # discards_non_power_2
- #
- # thin_disabled_features = [ "discards", "block_size" ]
-}
-
-activation {
- # Set to 1 to perform internal checks on the operations issued to
- # libdevmapper. Useful for debugging problems with activation.
- # Some of the checks may be expensive, so it's best to use this
- # only when there seems to be a problem.
- checks = 0
-
- # Set to 0 to disable udev synchronisation (if compiled into the binaries).
- # Processes will not wait for notification from udev.
- # They will continue irrespective of any possible udev processing
- # in the background. You should only use this if udev is not running
- # or has rules that ignore the devices LVM2 creates.
- # The command line argument --nodevsync takes precedence over this setting.
- # If set to 1 when udev is not running, and there are LVM2 processes
- # waiting for udev, run 'dmsetup udevcomplete_all' manually to wake them up.
- udev_sync = 1
-
- # Set to 0 to disable the udev rules installed by LVM2 (if built with
- # --enable-udev_rules). LVM2 will then manage the /dev nodes and symlinks
- # for active logical volumes directly itself.
- # N.B. Manual intervention may be required if this setting is changed
- # while any logical volumes are active.
- udev_rules = 1
-
- # Set to 1 for LVM2 to verify operations performed by udev. This turns on
- # additional checks (and if necessary, repairs) on entries in the device
- # directory after udev has completed processing its events.
- # Useful for diagnosing problems with LVM2/udev interactions.
- verify_udev_operations = 0
-
- # If set to 1 and if deactivation of an LV fails, perhaps because
- # a process run from a quick udev rule temporarily opened the device,
- # retry the operation for a few seconds before failing.
- retry_deactivation = 1
-
- # How to fill in missing stripes if activating an incomplete volume.
- # Using "error" will make inaccessible parts of the device return
- # I/O errors on access. You can instead use a device path, in which
- # case, that device will be used to in place of missing stripes.
- # But note that using anything other than "error" with mirrored
- # or snapshotted volumes is likely to result in data corruption.
- missing_stripe_filler = "error"
-
- # The linear target is an optimised version of the striped target
- # that only handles a single stripe. Set this to 0 to disable this
- # optimisation and always use the striped target.
- use_linear_target = 1
-
- # How much stack (in KB) to reserve for use while devices suspended
- # Prior to version 2.02.89 this used to be set to 256KB
- reserved_stack = 64
-
- # How much memory (in KB) to reserve for use while devices suspended
- reserved_memory = 8192
-
- # Nice value used while devices suspended
- process_priority = -18
-
- # If volume_list is defined, each LV is only activated if there is a
- # match against the list.
- #
- # "vgname" and "vgname/lvname" are matched exactly.
- # "@tag" matches any tag set in the LV or VG.
- # "@*" matches if any tag defined on the host is also set in the LV or VG
- #
- # If any host tags exist but volume_list is not defined, a default
- # single-entry list containing "@*" is assumed.
- #
- # volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
-
- # If auto_activation_volume_list is defined, each LV that is to be
- # activated with the autoactivation option (--activate ay/-a ay) is
- # first checked against the list. There are two scenarios in which
- # the autoactivation option is used:
- #
- # - automatic activation of volumes based on incoming PVs. If all the
- # PVs making up a VG are present in the system, the autoactivation
- # is triggered. This requires lvmetad (global/use_lvmetad=1) and udev
- # to be running. In this case, "pvscan --cache -aay" is called
- # automatically without any user intervention while processing
- # udev events. Please, make sure you define auto_activation_volume_list
- # properly so only the volumes you want and expect are autoactivated.
- #
- # - direct activation on command line with the autoactivation option.
- # In this case, the user calls "vgchange --activate ay/-a ay" or
- # "lvchange --activate ay/-a ay" directly.
- #
- # By default, the auto_activation_volume_list is not defined and all
- # volumes will be activated either automatically or by using --activate ay/-a ay.
- #
- # N.B. The "activation/volume_list" is still honoured in all cases so even
- # if the VG/LV passes the auto_activation_volume_list, it still needs to
- # pass the volume_list for it to be activated in the end.
-
- # If auto_activation_volume_list is defined but empty, no volumes will be
- # activated automatically and --activate ay/-a ay will do nothing.
- #
- # auto_activation_volume_list = []
-
- # If auto_activation_volume_list is defined and it's not empty, only matching
- # volumes will be activated either automatically or by using --activate ay/-a ay.
- #
- # "vgname" and "vgname/lvname" are matched exactly.
- # "@tag" matches any tag set in the LV or VG.
- # "@*" matches if any tag defined on the host is also set in the LV or VG
- #
- # auto_activation_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
-
- # If read_only_volume_list is defined, each LV that is to be activated
- # is checked against the list, and if it matches, it as activated
- # in read-only mode. (This overrides '--permission rw' stored in the
- # metadata.)
- #
- # "vgname" and "vgname/lvname" are matched exactly.
- # "@tag" matches any tag set in the LV or VG.
- # "@*" matches if any tag defined on the host is also set in the LV or VG
- #
- # read_only_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
-
- # For RAID or 'mirror' segment types, 'raid_region_size' is the
- # size (in kiB) of each:
- # - synchronization operation when initializing
- # - each copy operation when performing a 'pvmove' (using 'mirror' segtype)
- # This setting has replaced 'mirror_region_size' since version 2.02.99
- raid_region_size = 512
-
- # Setting to use when there is no readahead value stored in the metadata.
- #
- # "none" - Disable readahead.
- # "auto" - Use default value chosen by kernel.
- readahead = "auto"
-
- # 'raid_fault_policy' defines how a device failure in a RAID logical
- # volume is handled. This includes logical volumes that have the following
- # segment types: raid1, raid4, raid5*, and raid6*.
- #
- # In the event of a failure, the following policies will determine what
- # actions are performed during the automated response to failures (when
- # dmeventd is monitoring the RAID logical volume) and when 'lvconvert' is
- # called manually with the options '--repair' and '--use-policies'.
- #
- # "warn" - Use the system log to warn the user that a device in the RAID
- # logical volume has failed. It is left to the user to run
- # 'lvconvert --repair' manually to remove or replace the failed
- # device. As long as the number of failed devices does not
- # exceed the redundancy of the logical volume (1 device for
- # raid4/5, 2 for raid6, etc) the logical volume will remain
- # usable.
- #
- # "allocate" - Attempt to use any extra physical volumes in the volume
- # group as spares and replace faulty devices.
- #
- raid_fault_policy = "warn"
-
- # 'mirror_image_fault_policy' and 'mirror_log_fault_policy' define
- # how a device failure affecting a mirror (of "mirror" segment type) is
- # handled. A mirror is composed of mirror images (copies) and a log.
- # A disk log ensures that a mirror does not need to be re-synced
- # (all copies made the same) every time a machine reboots or crashes.
- #
- # In the event of a failure, the specified policy will be used to determine
- # what happens. This applies to automatic repairs (when the mirror is being
- # monitored by dmeventd) and to manual lvconvert --repair when
- # --use-policies is given.
- #
- # "remove" - Simply remove the faulty device and run without it. If
- # the log device fails, the mirror would convert to using
- # an in-memory log. This means the mirror will not
- # remember its sync status across crashes/reboots and
- # the entire mirror will be re-synced. If a
- # mirror image fails, the mirror will convert to a
- # non-mirrored device if there is only one remaining good
- # copy.
- #
- # "allocate" - Remove the faulty device and try to allocate space on
- # a new device to be a replacement for the failed device.
- # Using this policy for the log is fast and maintains the
- # ability to remember sync state through crashes/reboots.
- # Using this policy for a mirror device is slow, as it
- # requires the mirror to resynchronize the devices, but it
- # will preserve the mirror characteristic of the device.
- # This policy acts like "remove" if no suitable device and
- # space can be allocated for the replacement.
- #
- # "allocate_anywhere" - Not yet implemented. Useful to place the log device
- # temporarily on same physical volume as one of the mirror
- # images. This policy is not recommended for mirror devices
- # since it would break the redundant nature of the mirror. This
- # policy acts like "remove" if no suitable device and space can
- # be allocated for the replacement.
-
- mirror_log_fault_policy = "allocate"
- mirror_image_fault_policy = "remove"
-
- # 'snapshot_autoextend_threshold' and 'snapshot_autoextend_percent' define
- # how to handle automatic snapshot extension. The former defines when the
- # snapshot should be extended: when its space usage exceeds this many
- # percent. The latter defines how much extra space should be allocated for
- # the snapshot, in percent of its current size.
- #
- # For example, if you set snapshot_autoextend_threshold to 70 and
- # snapshot_autoextend_percent to 20, whenever a snapshot exceeds 70% usage,
- # it will be extended by another 20%. For a 1G snapshot, using up 700M will
- # trigger a resize to 1.2G. When the usage exceeds 840M, the snapshot will
- # be extended to 1.44G, and so on.
- #
- # Setting snapshot_autoextend_threshold to 100 disables automatic
- # extensions. The minimum value is 50 (A setting below 50 will be treated
- # as 50).
-
- snapshot_autoextend_threshold = 100
- snapshot_autoextend_percent = 20
-
- # 'thin_pool_autoextend_threshold' and 'thin_pool_autoextend_percent' define
- # how to handle automatic pool extension. The former defines when the
- # pool should be extended: when its space usage exceeds this many
- # percent. The latter defines how much extra space should be allocated for
- # the pool, in percent of its current size.
- #
- # For example, if you set thin_pool_autoextend_threshold to 70 and
- # thin_pool_autoextend_percent to 20, whenever a pool exceeds 70% usage,
- # it will be extended by another 20%. For a 1G pool, using up 700M will
- # trigger a resize to 1.2G. When the usage exceeds 840M, the pool will
- # be extended to 1.44G, and so on.
- #
- # Setting thin_pool_autoextend_threshold to 100 disables automatic
- # extensions. The minimum value is 50 (A setting below 50 will be treated
- # as 50).
-
- thin_pool_autoextend_threshold = 100
- thin_pool_autoextend_percent = 20
-
- # While activating devices, I/O to devices being (re)configured is
- # suspended, and as a precaution against deadlocks, LVM2 needs to pin
- # any memory it is using so it is not paged out. Groups of pages that
- # are known not to be accessed during activation need not be pinned
- # into memory. Each string listed in this setting is compared against
- # each line in /proc/self/maps, and the pages corresponding to any
- # lines that match are not pinned. On some systems locale-archive was
- # found to make up over 80% of the memory used by the process.
- # mlock_filter = [ "locale/locale-archive", "gconv/gconv-modules.cache" ]
-
- # Set to 1 to revert to the default behaviour prior to version 2.02.62
- # which used mlockall() to pin the whole process's memory while activating
- # devices.
- use_mlockall = 0
-
- # Monitoring is enabled by default when activating logical volumes.
- # Set to 0 to disable monitoring or use the --ignoremonitoring option.
- monitoring = 1
-
- # When pvmove or lvconvert must wait for the kernel to finish
- # synchronising or merging data, they check and report progress
- # at intervals of this number of seconds. The default is 15 seconds.
- # If this is set to 0 and there is only one thing to wait for, there
- # are no progress reports, but the process is awoken immediately the
- # operation is complete.
- polling_interval = 15
-}
-
-
-####################
-# Advanced section #
-####################
-
-# Metadata settings
-#
-# metadata {
- # Default number of copies of metadata to hold on each PV. 0, 1 or 2.
- # You might want to override it from the command line with 0
- # when running pvcreate on new PVs which are to be added to large VGs.
-
- # pvmetadatacopies = 1
-
- # Default number of copies of metadata to maintain for each VG.
- # If set to a non-zero value, LVM automatically chooses which of
- # the available metadata areas to use to achieve the requested
- # number of copies of the VG metadata. If you set a value larger
- # than the the total number of metadata areas available then
- # metadata is stored in them all.
- # The default value of 0 ("unmanaged") disables this automatic
- # management and allows you to control which metadata areas
- # are used at the individual PV level using 'pvchange
- # --metadataignore y/n'.
-
- # vgmetadatacopies = 0
-
- # Approximate default size of on-disk metadata areas in sectors.
- # You should increase this if you have large volume groups or
- # you want to retain a large on-disk history of your metadata changes.
-
- # pvmetadatasize = 255
-
- # List of directories holding live copies of text format metadata.
- # These directories must not be on logical volumes!
- # It's possible to use LVM2 with a couple of directories here,
- # preferably on different (non-LV) filesystems, and with no other
- # on-disk metadata (pvmetadatacopies = 0). Or this can be in
- # addition to on-disk metadata areas.
- # The feature was originally added to simplify testing and is not
- # supported under low memory situations - the machine could lock up.
- #
- # Never edit any files in these directories by hand unless you
- # you are absolutely sure you know what you are doing! Use
- # the supplied toolset to make changes (e.g. vgcfgrestore).
-
- # dirs = [ "/etc/lvm/metadata", "/mnt/disk2/lvm/metadata2" ]
-#}
-
-# Event daemon
-#
-dmeventd {
- # mirror_library is the library used when monitoring a mirror device.
- #
- # "libdevmapper-event-lvm2mirror.so" attempts to recover from
- # failures. It removes failed devices from a volume group and
- # reconfigures a mirror as necessary. If no mirror library is
- # provided, mirrors are not monitored through dmeventd.
-
- mirror_library = "libdevmapper-event-lvm2mirror.so"
-
- # snapshot_library is the library used when monitoring a snapshot device.
- #
- # "libdevmapper-event-lvm2snapshot.so" monitors the filling of
- # snapshots and emits a warning through syslog when the use of
- # the snapshot exceeds 80%. The warning is repeated when 85%, 90% and
- # 95% of the snapshot is filled.
-
- snapshot_library = "libdevmapper-event-lvm2snapshot.so"
-
- # thin_library is the library used when monitoring a thin device.
- #
- # "libdevmapper-event-lvm2thin.so" monitors the filling of
- # pool and emits a warning through syslog when the use of
- # the pool exceeds 80%. The warning is repeated when 85%, 90% and
- # 95% of the pool is filled.
-
- thin_library = "libdevmapper-event-lvm2thin.so"
-
- # Full path of the dmeventd binary.
- #
- # executable = "@DMEVENTD_PATH@"
-}
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