[linux-lvm] LVM questions & problems.
Rupert Heesom
raheesom at navpoint.com
Mon May 7 01:05:13 UTC 2001
I'm practicing doing some LVM commands, and am coming up with some
problems -
Most disconcerting is that when I try to create a directory in the LV, I
get the following error - (this does not happen all the time, but almost
all the time 99%) -
[root at localhost Tmp]# mkdir test1
mkdir: cannot create directory `test1': Input/output error
Creating normal files on the LV is not a problem.
Also, the figures in the following outputs don't seem to make sense to
me -
287Mb of space taken on my LV lvol1 (shown using du -h).
LV lvol1 - shows all 75 logical extends taken, I'm assuming filling up
the 300Mb LV size.
LV Size 300 MB
Current LE 75
Allocated LE 75
PV shows too many physical extends used for the proportion of disk space
used. -
Total PE 76
Free PE 1
PVdisplay shows too many physical extents used again
Total PE 76
Free PE 1
Allocated PE 75
----------------------------------------
LVM command outputs
-------------------
[root at localhost Tmp]# lvdisplay /dev/vg/lvol1
lvdisplay
--- Logical volume ---
LV Name /dev/vg/lvol1
VG Name vg
LV Write Access read/write
LV Status available
LV # 1
# open 1
LV Size 300 MB
Current LE 75
Allocated LE 75
Allocation next free
Read ahead sectors 120
Block device 58:0
[root at localhost Tmp]# pvdisplay /dev/sdb1
pvdisplay
--- Physical volume ---
PV Name /dev/sdb1
VG Name vg
PV Size 305.89 MB / NOT usable 1.89 MB [LVM: 121 KB]
PV# 1
PV Status available
Allocatable yes
Cur LV 1
PE Size (KByte) 4096
Total PE 76
Free PE 1
Allocated PE 75
PV UUID wm3nGp-pEem-0byC-3JOs-OFs4-3kv2-EkPxaK
[root at localhost Tmp]# vgdisplay
vgdisplay
--- Volume group ---
VG Name vg
VG Access read/write
VG Status available/resizable
VG # 0
MAX LV 256
Cur LV 1
Open LV 1
MAX LV Size 255.99 GB
Max PV 256
Cur PV 1
Act PV 1
VG Size 304 MB
PE Size 4 MB
Total PE 76
Alloc PE / Size 75 / 300 MB
Free PE / Size 1 / 4 MB
VG UUID 0ZyZNT-53L9-tAFJ-GCa4-1Zr5-nZli-IFIbIP
--
regs
rupert
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