3:47 p.m.
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.
4:27 p.m.
--=-FecfxbSE6ELSYP2S1LHB
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
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,=20
On Di, 2014-07-22 at 14:47 +0200, Neil wrote:
Hi guys,
=20
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?
=20
Thank you.
=20
Regards.
=20
Neil Wilson.
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Handeslregister: Amtsgericht Charlottenburg / HRB 112767=20
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--=-FecfxbSE6ELSYP2S1LHB--
4:56 p.m.
Hi Daniel,
Correct, we are using FC as primary storage. The VM itself was a
Server 2003 VM, so the only resources we could get were from the task
manager, the CPU resources in Task Manager showed the load spiking to
100% usage.
The backup VM (prior to extending) is currently being restored from
the export domain and the extended VM is shutdown currently, so I
won't be able to give you the info until I boot it up again.
My apologies, another technician is actually working on this problem
and he's just gone ahead trying to restore.
Thanks for coming back to me though.
Much appreciated.
Regards.
Neil Wilson.
On Tue, Jul 22, 2014 at 3:27 PM, Daniel Helgenberger
<daniel.helgenberger(a)m-box.de> wrote:
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.
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
--
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