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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