SOLVED: LVM pvmove problems

On 16 Aug 2007, at 18:08, Vesa-Pekka Palmu wrote:

> On Thu, 16 Aug 2007, michael wrote:
>
>> I'm trying to reduce a logical vol so that I can remove a HD from it.
>> However, I get errors with pvmove but I don't know why. I saw some
>> old
>> postings with a kernel patch but the URL is extinct.
>>
>> I'm running Fedora: Linux xxx.phy.umist.ac.uk 2.6.22.1-41.fc7 #1
>> SMP Fri
>> Jul 27 18:21:43 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
>>
>>
>> chris@veri:~$ sudo /usr/sbin/pvdisplay /dev/sdb1
>> Password:
>> --- Physical volume ---
>> PV Name /dev/sdb1
>> VG Name VolGroup00
>> PV Size 698.64 GB / not usable 10.34 MB
>> Allocatable yes
>> PE Size (KByte) 32768
>> Total PE 22356
>> Free PE 19156
>> Allocated PE 3200
>> PV UUID xDWUQB-wdEx-AtEs-YFkh-BKBR-7Jgd-9ik3p0
>>
>>
>> chris@veri:~$ sudo /usr/sbin/pvdisplay /dev/sda2
>> --- Physical volume ---
>> PV Name /dev/sda2
>> VG Name VolGroup00
>> PV Size 465.66 GB / not usable 3.56 MB
>> Allocatable yes
>> PE Size (KByte) 32768
>> Total PE 14901
>> Free PE 14839
>> Allocated PE 62
>> PV UUID GLGcHf-b3Ga-M61f-okkW-HaAk-Al7P-leVK91
>>
>>
>> chris@veri:~$ sudo /usr/sbin/pvmove /dev/sdb1
>> Failure parsing mirror status fraction: 1 core
>> Failure parsing mirror status fraction: 1 core
>> ABORTING: Mirror percentage check failed.
>>
>>
>
> 2.6.22 has a bug in dm-mirror status reporting, and as lvm relies
> on that to parse the progress of pvmove, it causes pvmove to fail,
> use 2.6.21 or patch your kernel.

Thanks for clarifying what the bug is and that indeed pvmove will give these errors. As I said I can't find the patch but I've put a 2.6.21 kernel on my system and now pvmove is doing the business. Thanks, Michael

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