[Xen-users] Individual block device generating load

[Joshua M Boniface <joshua@xxxxxxxxxxx>]

Hello Xen-users:

I've got a Xen system with multiple running (production) VMs, using the 
xm toolstack on Debian Squeeze. I'm noticing a large amount of disk I/O 
via dstat, and I'm trying to see which Xen DomU block device is 
generating the load. xentop offers a bit of information on reads/writes, 
but it's on a per-domain level, not a per-block-device level. The block 
devices in question are logical volumes.
Is there a way to see a breakdown of the disk I/O per device, or a set 
of virtual block devices that I could pass to dstat?
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