Looking a little more at it. It appears that the volume is dismounting and
remounting itself. Now it is just identifying why..
-----Original Message-----
From: Nick Couchman [mailto:Nick.Couchman@xxxxxxxxx]
Sent: Friday, January 22, 2010 2:29 PM
To: Joseph Coleman; 'xen-users@xxxxxxxxxxxxxxxxxxx'
Subject: Re: [Xen-users] Extremely poor iSCSI performance
Oh, and this happens on both FC and iSCSI-attached storage for me.
-Nick
>>> On 2010/01/22 at 10:46, "Nick Couchman" <Nick.Couchman@xxxxxxxxx> wrote:
> I see similar behavior with OCFS2 on my 4 and 2-node clusters. Usually this
> happens when I'm creating a new disk file...since OCFS2 does not support
> sparse disks it actually creates the whole disk, and I often see large hangs
> while this is happening. I suspect that OCFS2 is the cause - I think
> something about the file locking on the OCFS2 cluster causes this.
>
> -Nick
>
>>>> On 2010/01/22 at 08:28, Joseph Coleman <joe.coleman@xxxxxxxxxxxxxxxxxx>
>>>> wrote:
>
>> Hi all not sure if anyone can help but I have an OCFS2 volume setup on my 4
>
>> xen nodes. If you do like 4 cp copies to the iscsi volume the systems
> pause
>> for up to 30 seconds as well as the VM itself. The San looks fine and I am
>> not taxing the xen server either anyone else seen this?
>
>
>
>
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