[linux-lvm] [support at sistina.com: Re: [support] LVM support request]
Toad
toad at amphibian.dyndns.org
Fri May 2 11:36:01 UTC 2003
----- Forwarded message from "Laurie E. Miller" <support at sistina.com> -----
Envelope-to: toad at amphibian.dyndns.org
Subject: Re: [support] LVM support request
From: "Laurie E. Miller" <support at sistina.com>
To: <toad at amphibian.dyndns.org>
Importance: Normal
Cc: <support at sistina.com>
Since LVM is an open-source project, support for LVM is handled through
its open-source community mailing lists which can be found at
http://www.sistina.com/products_lvm_mailing%20list.htm
Toad said:
> Hi. I had a functioning LVM system with PVs on several partitions on
> hda, and the whole disk PVs on hdb and hdc. On each PV on hda, I
> pvmove'd the data onto the whole-disk PVs and pvchange -x n'd them. I
> then vgreduce'd them out of the VG (I may have missed one? I am not
> sure how to explain what happened later otherwise), deleted the
> partitions via fdisk, and rebooted. Then LVM stopped working, with
> error messages similar to the following:
>
> servalan:~# vgscan
> vgscan -- reading all physical volumes (this may take a while...)
> vgscan -- ERROR "vg_read_with_pv_and_lv(): current PV" can't get data
> of volume
> group "vg-big" from physical volume(s)
> vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> vgscan -- WARNING: This program does not do a VGDA backup of your
> volume group
>
> servalan:~# pvdisplay /dev/ide/host0/bus0/target1/lun0/disc
> --- Physical volume ---
> PV Name /dev/ide/host0/bus0/target1/lun0/disc
> VG Name vg-big
> PV Size 42.95 GB [90069840 secs] / NOT usable 1.31 MB
> [LVM: 299 KB]
> PV# 9
> PV Status available
> Allocatable yes (but full)
> Cur LV 19
> PE Size (KByte) 1024
> Total PE 43978
> Free PE 0
> Allocated PE 43978
> PV UUID 6SpCDw-2ewQ-ITbk-IQIn-p0MV-zlDs-e29Qzr
>
> servalan:~# pvscan
> pvscan -- reading all physical volumes (this may take a while...)
> pvscan -- inactive PV "/dev/ide/host0/bus0/target1/lun0/disc" is
> associated to
> unknown VG "vg-big" (run vgscan)
> pvscan -- total: 1 [42.95 GB] / in use: 1 [42.95 GB] / in no VG: 0 [0]
>
> vgcfgrestore was unhelpful, it restored the VGDA data to the volume but
> then vgscan got the same problem as above. Because my /usr was on
> LVM, I had to reinstall linux onto hda, so I do not have my /etc
> anymore. So I now have two physical volumes with approximately 145GB
> total, in which several tens of gigabytes of data split between about
> 20 LVs is
> buried... somewhere. Is there any way to recover the data? My backups
> are a month old due to problems with dvdrtools and unknown DVD-R media,
> but that's another story. Anyhow, if you could help me get back my
> data that would a) be very helpful and b) I would consider paying
> reasonable support costs _if_ I get my data back.
>
> ----- Forwarded message from Oleg Drokin <green at namesys.com> -----
>
> Envelope-to: toad at amphibian.dyndns.org
> From: Oleg Drokin <green at namesys.com>
> To: Toad <toad at amphibian.dyndns.org>
> Cc: support at sistina.com, support at namesys.com
> Subject: Re: Support request, you may have replied and got a mailer
> problem
>
> Hello!
>
> In fact there were a lot more instructions than just vgcfgrestore.
>
> We think that people at support at sistina.com will be able to provide you
> with better advice. Because they are the authors of the LVM code and
> are usually authors are more expert than others advising on their
> software. If you later discover there are also reiserfs-related issues,
> please let us know.
>
> Your money that you paid to us will be refunded.
>
> Bye,
> Oleg
> On Fri, May 02, 2003 at 02:48:57PM +0100, Toad wrote:
>> On Fri, May 02, 2003 at 05:33:45PM +0400, Oleg Drokin wrote:
>> > Hello!
>> > On Fri, May 02, 2003 at 02:19:26PM +0100, Toad wrote:
>> >
>> > > > > There may have been local mail problems at this end. My other
>> > > > > address is mtoseland at blueyonder.co.uk. If you tried to reply
>> > > > > and the mail server said there was no space, please try
>> > > > > again. I am looking forward to hearing from you if only to
>> > > > > say that you got my message and are looking into it, because
>> > > > > you have my money and I don't have my data :)
>> > > > Are there any messages from kernel/lvm tools when you try to
>> > > > start LVM? I am going to try and reproduce the situation myself
>> > > > to see what can be done.
>> > > Indeed:
>> > > servalan:~# vgscan
>> > > vgscan -- reading all physical volumes (this may take a while...)
>> > > vgscan -- ERROR "vg_read_with_pv_and_lv(): current PV" can't get
>> > > data of volume
>> > > group "vg-big" from physical volume(s)
>> > > vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
>> > > vgscan -- WARNING: This program does not do a VGDA backup of your
>> > > volume group
>> > > servalan:~# vgdisplay
>> > > vgdisplay -- no volume groups found
>> > > servalan:~# pvscan
>> > > pvscan -- reading all physical volumes (this may take a while...)
>> > > pvscan -- inactive PV "/dev/ide/host0/bus0/target1/lun0/disc" is
>> > > associated to
>> > > unknown VG "vg-big" (run vgscan)
>> > > pvscan -- total: 1 [42.95 GB] / in use: 1 [42.95 GB] / in no VG: 0
>> > > [0] servalan:~# vgscan
>> > > vgscan -- reading all physical volumes (this may take a while...)
>> > > vgscan -- ERROR "vg_read_with_pv_and_lv(): current PV" can't get
>> > > data of volume
>> > > group "vg-big" from physical volume(s)
>> > > vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
>> > > vgscan -- WARNING: This program does not do a VGDA backup of your
>> > > volume group
>> >
>> > Ok, can yo also describe what you already tried to do?
>>
>> I tried as above to get LVM to recognize the volume group; I got
>> output similar to the above. I reinstalled linux on the first drive,
>> which should not have had any LVM data on it by this point. I have
>> been backing up disk images of the LVM drives onto DVD...
>>
>> As I said in the other mail, the original problem occurred when I
>> pvmove'd all the data off the LVM PVs on the partitions on /dev/hda,
>> pvchange -a n'd them, and then vgreduced them... except that maybe I
>> missed one, because when I rebooted the LVM had stopped working. I do
>> not have my /etc anymore, but when I did have it and tried to
>> vgcfgrestore, it didn't work, with I think error messages similar to
>> the above...
>>
>> >
>> > And have you seen this mail (problem looks similar to yours):
>> > http://lists.sistina.com/pipermail/linux-lvm/2002-July/011825.html
>>
>> I did try to vgcfgrestore, but it didn't work and I had to reinstall
>> because my /usr was on LVM.
>> >
>> > Bye,
>> > Oleg
>>
>>
>> Output from pvdata /dev/hdb (/dev/hdc should also have LVM data):
>>
>> --- Physical volume ---
>> PV Name /dev/hdb
>> VG Name vg-big
>> PV Size 42.95 GB [90069840 secs] / NOT usable 1.31 MB
>> [LVM: 299 KB]
>> PV# 9
>> PV Status available
>> Allocatable yes (but full)
>> Cur LV 19
>> PE Size (KByte) 1024
>> Total PE 43978
>> Free PE 0
>> Allocated PE 43978
>> PV UUID 6SpCDw-2ewQ-ITbk-IQIn-p0MV-zlDs-e29Qzr
>>
>> --- Volume group ---
>> VG Name
>> VG Access read/write
>> VG Status NOT available/resizable
>> VG # 0
>> MAX LV 256
>> Cur LV 24
>> Open LV 0
>> MAX LV Size 64 GB
>> Max PV 256
>> Cur PV 3
>> Act PV 3
>> VG Size 183.78 GB
>> PE Size 1 MB
>> Total PE 188188
>> Alloc PE / Size 142950 / 139.60 GB
>> Free PE / Size 45238 / 44.18 GB
>> VG UUID J5F2e6-iuYs-1x8f-TYq8-PGHC-R0ol-qa9s7H
>>
>> --- List of logical volumes ---
>>
>> pvdata -- logical volume "/dev/vg-big/ebak" at offset 0
>> pvdata -- logical volume "/dev/vg-big/home" at offset 1
>> pvdata -- logical volume "/dev/vg-big/usr" at offset 2
>> pvdata -- logical volume "/dev/vg-big/var" at offset 3
>> pvdata -- logical volume "/dev/vg-big/usr-share" at offset 4
>> pvdata -- logical volume "/dev/vg-big/usr-src" at offset 5
>> pvdata -- logical volume "/dev/vg-big/usr-doc-local" at offset 6
>> pvdata -- logical volume "/dev/vg-big/usr-mp3" at offset 7
>> pvdata -- logical volume "/dev/vg-big/usr-make" at offset 8
>> pvdata -- logical volume "/dev/vg-big/var-spool-squid" at offset 9
>> pvdata -- logical volume "/dev/vg-big/var-lib-freenet_unstable" at
>> offset 10
>> pvdata -- logical volume "/dev/vg-big/swap" at offset 11
>> pvdata -- logical volume "/dev/vg-big/var-log" at offset 12
>> pvdata -- logical volume "/dev/vg-big/home-evelyn" at offset 13
>> pvdata -- logical volume "/dev/vg-big/var-log-freenet_stable" at
>> offset 14
>> pvdata -- logical volume "/dev/vg-big/usr-games" at offset 15
>> pvdata -- logical volume "/dev/vg-big/var-cache" at offset 16
>> pvdata -- logical volume "/dev/vg-big/usr-local-temp" at offset 17
>> pvdata -- logical volume "/dev/vg-big/opt" at offset 18
>> pvdata -- logical volume "/dev/vg-big/home-toad" at offset 19
>> pvdata -- logical volume "/dev/vg-big/home-browser" at offset 20
>> pvdata -- logical volume "/dev/vg-big/root" at offset 21
>> pvdata -- logical volume
>> "/dev/vg-big/var-lib-freenet_unstable-secondary" at offset 22
>> pvdata -- logical volume struct at offset 23 is empty
>> pvdata -- logical volume struct at offset 24 is empty
>> pvdata -- logical volume
>> "/dev/vg-big/var-lib-freenet_unstable-freenet_downloads" at offset 25
>> pvdata -- logical volume struct at offset 26 is empty
>> pvdata -- logical volume struct at offset 27 is empty
>> pvdata -- logical volume struct at offset 28 is empty
>> pvdata -- logical volume struct at offset 29 is empty
>> .............
>> pvdata -- logical volume struct at offset 255 is empty
>> --- List of physical volume UUIDs ---
>>
>> 001: kcSXvw-uhea-ERDp-aZMw-z9E2-QNE1-vX8S1m
>> 002: 6SpCDw-2ewQ-ITbk-IQIn-p0MV-zlDs-e29Qzr
>> 003: 1KvMpe-OkCL-JVS0-7KQq-PukV-auM1-jmyk1G
>>
>>
>
> ----- End forwarded message -----
>
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Laurie E. Miller
support at sistina.com
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