[ovirt-users] Misaligned Disk after resize
Daniel Helgenberger
daniel.helgenberger at m-box.de
Tue Jul 22 13:27:10 UTC 2014
Hi Neil,
To severely impact iops with a single nonaligned VM - image the is
rather unusual.
Can you please be more specific:
IIRC, to run into the misalignment scenario you need block backed
storage for your VM. So FC / Posix / iSCSI but not NFS.
- The CPU load of the visualization host or the VM?
- Can you confirm (eg. with top) that you have constant a high IO Wait
(>20%) there?
Cheers,
On Di, 2014-07-22 at 14:47 +0200, Neil wrote:
> Hi guys,
>
> We re-sized (expanded) a Server 2003 VM a few weeks back and since
> then the CPU load seems to be rather excessive. Also in the oVirt GUI
> it reports the disk is misaligned, I've done a bit of reading and it
> sounds like the only way to correct the alignment again is to
> re-install, is this the only option?
>
> Thank you.
>
> Regards.
>
> Neil Wilson.
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Daniel Helgenberger
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