[linux-lvm] No device found for PV but is actually fine
Jack Waterworth
jack at redhat.com
Thu May 8 14:00:37 UTC 2014
Hi Michael,
Check your pvs output to see if any of your pvs have the 'm'
attribute. This means the device has been marked as missing in the metadata.
You can remove this attribute by running the vgextend command.
# vgextend --restoremissing /dev/device
I usually see this happen on virtual machines. Is this setup running on
a virt?
Jack Waterworth
Senior Technical Support Engineer
Red Hat Global Support Services North America
919.754.4625
On 05/08/2014 06:45 AM, Michal Svoboda wrote:
> Hi all,
>
> I have a weird issue:
>
> # pvs
> No device found for PV JszGc1-S16s-bsFQ-weAl-aj8W-d6y4-BeVqcN.
> PV VG Fmt Attr PSize PFree
> /dev/sdc data2 lvm2 a-- 298.09g 0
> /dev/sdd1 data lvm2 a-- 298.09g 0
>
> # pvscan
> No device found for PV JszGc1-S16s-bsFQ-weAl-aj8W-d6y4-BeVqcN.
> No device found for PV JszGc1-S16s-bsFQ-weAl-aj8W-d6y4-BeVqcN.
> PV /dev/sdc VG data2 lvm2 [298.09 GiB / 0 free]
> PV /dev/sdd1 VG data lvm2 [298.09 GiB / 0 free]
> Total: 2 [596.18 GiB] / in use: 2 [596.18 GiB] / in no VG: 0 [0 ]
>
> # pvscan --cache
> Found duplicate PV JszGc1S16sbsFQweAlaj8Wd6y4BeVqcN: using /dev/sde2 not /dev/md0
> Found duplicate PV JszGc1S16sbsFQweAlaj8Wd6y4BeVqcN: using /dev/sdf2 not /dev/sde2
>
> The VG on the "missing" PV is called "system", but:
>
> # vgdisplay /dev/system
> No device found for PV JszGc1-S16s-bsFQ-weAl-aj8W-d6y4-BeVqcN.
> --- Volume group ---
> VG Name system
> System ID
> Format lvm2
> Metadata Areas 0
> Metadata Sequence No 28
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 8
> Open LV 8
> Max PV 0
> Cur PV 1
> Act PV 0
> VG Size 232.88 GiB
> PE Size 4.00 MiB
> Total PE 59616
> Alloc PE / Size 33792 / 132.00 GiB
> Free PE / Size 25824 / 100.88 GiB
> VG UUID fQoJ8p-BI3D-BcEH-BiQX-JJqf-p6TT-6KIoRt
>
> Actually all LVs on the "system" VG are present and accounted for. The
> LVs contain the root file system, and some virtual machine drives, all
> of which are running *fine* (and the system in fact boots up from the
> "missing" PV :). But I can't resize:
>
> # lvextend -L +16G /dev/system/vm-monitor
> No device found for PV JszGc1-S16s-bsFQ-weAl-aj8W-d6y4-BeVqcN.
> Cannot change VG system while PVs are missing.
> Consider vgreduce --removemissing.
>
> The "system" VG is situated on a md raid1. I think it all happened after
> I replaced all the drives of that md with mdadm --replace with bigger
> disks. But I can't be sure, because the system in fact works and except
> the inability to resize there are no problems.
>
> I have googled around a bit, but to no avail. Can someone help me
> diagnose and repair this?
>
> Version info:
>
> # pvs --version
> LVM version: 2.02.105(2) (2014-01-20)
> Library version: 1.02.84 (2014-01-20)
> Driver version: 4.27.0
>
> # cat /proc/version
> Linux version 3.14.0-4-ARCH (nobody at var-lib-archbuild-extra-x86_64-thomas) (gcc version 4.8.2 20140206 (prerelease) (GCC) ) #1 SMP PREEMPT Wed Apr 9 21:11:25 CEST 2014
>
>
> Thanks,
> Michal Svoboda
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
More information about the linux-lvm
mailing list