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Re: [Xen-devel] Limit I/O for individual disks of VM

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: Re: [Xen-devel] Limit I/O for individual disks of VM
From: Tõnis Bramanis <tonis@xxxxxxxxxx>
Date: Wed, 28 Sep 2011 09:25:04 +0300
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Hello

and thank You for the answer. Has anyone of You tried to limit i/o on the VMs?

I have about 40 containers and when the i/o gets too high, the host will crash with this error:
[23959.739698] sd 4:0:0:0: rejecting I/O to offline device
5       [23959.771158] Buffer I/O error on device dm-0, logical block 40259

This is not a support request! I am just referring why i would like to limit the disks i/o.

Regards,
Tõnis Bramanis

On 27.09.2011 22:58, Jeremy Fitzhardinge wrote:
On 09/27/2011 01:33 AM, Tõnis Bramanis wrote:
Hello!

Will disk i/o limiting be added in any future versions? I see it in
the 4.0 feature requests, but not in any changelogs.

I think the hope is that we can use the generic Linux mechanisms for
this rather than having to add anything Xen-specific.

     J

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