[linux-lvm] what does 'orphan vg' mean?(global vg?)
chaimvy at 163.com
Tue Apr 13 12:36:20 UTC 2010
Thank you very much for so detailed reply.
I still have one question, the full scan like 'vgs' will scan the devives(both used and unused in the LVM) to find the label info, I read the debug mesg by using 'vgs -vvvv' cmd. when it take a long time, it may stop for a while by output the '#device/dev-io.c:486 Opened /dev/sdp RO O_DIRECT' ('sdp' just for example,or may be a soft raid md device), I don't know why it will stop for a while, locking?device missing? or other reason? I need your help and advice.
The missing devices you mentioned in the emails before, means the devices used in the LVM (PVs), or the other devices in the system , or both? You said 'missing device was searched too many times slowing everything down'.
在2010-04-13 20:11:01，"Milan Broz" <mbroz at redhat.com> 写道：
>On 04/13/2010 01:33 PM, Busby.Cheung wrote:
>> My LVM2 version is 2.02.54, haven't done any patch.
>> Did you mean that there were some patches to fix the 'take long time' 's bug?
>I mean these not-yet released changes in upstream, not that fixes all problems,
>but should help
>Version 2.02.63 -
> Suppress repeated errors about the same missing PV uuids.
> Bypass full device scans when using internally-cached VG metadata.
> Only do one full device scan during each read of text format metadata.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the linux-lvm