[linux-lvm] pvresize will cause a meta-data corruption with error message "Error writing device at 4096 length 512"

[Ilia Zykov]

Maybe this?

Please note that this problem can also happen in other cases, such as
mixing disks with different block sizes (e.g. SCSI disks with 512 bytes
and s390x-DASDs with 4096 block size).

https://www.redhat.com/archives/linux-lvm/2019-February/msg00018.html



On 11.09.2019 12:17, Gang He wrote:
> Hello List,
> 
> Our user encountered a meta-data corruption problem, when run pvresize command after upgrading to LVM2 v2.02.180 from v2.02.120.
> 
> The details are as below,
> we have following environment:
> - Storage: HP XP7 (SAN) - LUN's are presented to ESX via RDM
> - VMWare ESXi 6.5
> - SLES 12 SP 4 Guest
> 
> Resize happened this way (is our standard way since years) - however - this is our first resize after upgrading SLES 12 SP3 to SLES 12 SP4 - until this upgrade, we
> never had a problem like this:
> - split continous access on storage box, resize lun on XP7
> - recreate ca on XP7
> - scan on ESX
> - rescan-scsi-bus.sh -s on SLES VM
> - pvresize  ( at this step the error happened)
> 
> huns1vdb01:~ # pvresize /dev/disk/by-id/scsi-360060e80072a660000302a6600003274
>  Error writing device /dev/sdaf at 4096 length 512.
>  Failed to write mda header to /dev/sdaf fd -1
>  Failed to update old PV extension headers in VG vghundbhulv_ar.
>  Error writing device /dev/disk/by-id/scsi-360060e80072a660000302a66000031ec at 4096 length 512.
>  Failed to write mda header to /dev/disk/by-id/scsi-360060e80072a660000302a66000031ec fd -1
>  Failed to update old PV extension headers in VG vghundbhulk_ar.
>  VG info not found after rescan of vghundbhulv_r2
>  VG info not found after rescan of vghundbhula_r1
>  VG info not found after rescan of vghundbhuco_ar
>  Error writing device /dev/disk/by-id/scsi-360060e80072a660000302a66000031e8 at 4096 length 512.
>  Failed to write mda header to /dev/disk/by-id/scsi-360060e80072a660000302a66000031e8 fd -1
>  Failed to update old PV extension headers in VG vghundbhula_ar.
>  VG info not found after rescan of vghundbhuco_r2
>  Error writing device /dev/disk/by-id/scsi-360060e80072a660000302a660000300b at 4096 length 512.
>  Failed to write mda header to /dev/disk/by-id/scsi-360060e80072a660000302a660000300b fd -1
>  Failed to update old PV extension headers in VG vghundbhunrm02_r2.
> 
> Any idea for this bug?
> 
> Thanks a lot.
> Gang
> 
> 
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