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Re: [Xen-users] XEN - VM CPU usage / VM disk corruption

To: Vitor Sarabando <vitor.sarabando@xxxxxxxxxxxx>
Subject: Re: [Xen-users] XEN - VM CPU usage / VM disk corruption
From: Todd Deshane <deshantm@xxxxxxxxx>
Date: Sat, 18 Dec 2010 16:49:03 -0500
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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Reply-to: deshantm@xxxxxxxxx
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On Wed, Dec 15, 2010 at 5:25 AM, Vitor Sarabando
<vitor.sarabando@xxxxxxxxxxxx> wrote:
> Hi.
> We have a Xen running on Centos 5.5 on a HP ML 150 G6. We run just one VM (4 
> CPUS) with (SBS 2000) Windows 2000 Server SP4 + SQL + Exchange

Just checking, since you didn't specify. The Xen version is the one
included in Centos 5.5 and the packages are up to date?

> We have experiencing some issues:
> -          Slow VM usage.

How do you characterize this, what metrics are you using?

> -          We have to click icon’s on console twice.

What console?

> -          High CPU usage (always 99%) on Xen Monitor with no activity on VM 
> client (below 5%)

Nothing is running on the VM?

Can you post some log files? For example, the xend log. dmesg in the
guest, xm dmesg, etc. anything that could give some more information.

> -          VM Disk corruption (VM disk file based)

How? What operations caused this and how did you determine corruption?

Providing more information to the list allows us to give better suggestions.

For example, have you tried over types of guests? Linux, PV, etc.?
Similar problems?

Also, you may find hints by searching xen.markmail.org for similar issues.

Hope that helps.


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