Re: [Xen-users] xen, iscsi and resilience to short network outages

[John Madden <jmadden@xxxxxxxxxxx>]

> Because it is not tolerant to short network outages? :)

Short network outages?  Are you seeing this in domU?

> Perhaps that is an excellent point, though I'm not familiar with IO
> scheduling. But if pushing the IO up to domU makes it more reliable
> then I might be able to tolerate a small loss in IO performance. This
> presumes that it will be more reliable, which I won't have time to
> test right away.

I can't claim more "reliable," it just seems more logical and that it
would likely be more controllable.  Then again, who knows, maybe you
dedicate a CPU to dom0 and do all of your IO there, leaving other CPU's
to other workloads -- I guess it could be taken both ways.  But I would
think you'd want the hypervisor to be responsible for as little
userspace-type stuff as possible.

John



-- 
John Madden
Sr. UNIX Systems Engineer
Ivy Tech Community College of Indiana
jmadden@xxxxxxxxxxx


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