[OpenAFS] Deploying OpenAFS on VMs
Thu, 16 Jun 2011 18:26:43 -0700
Garance A Drosihn <firstname.lastname@example.org> writes:
> We have been pretty confident that we could put the new AFS db servers
> up as virtual machines (each virtual DB server on a different physical
> machine, of course).
Oh, yeah, absolutely. That shouldn't be any trouble at all.
> We've been thinking we could also put the AFS fileservers on different
> virtual machines, but maybe we should keep those on physical machines?
> We were expecting to put the /vicepX partitions on iSCSI disks, and had
> assumed that combination would provide pretty reasonable performance.
My guess is that as long as your iSCSI performance is reasonably good,
this shouldn't be a serious problem. The question is whether the
virtualization overhead is going to add enough latency to the file system
performance that you'll start noticing.
I suspect there's no replacement for just benchmarking with as close to
your actual load pattern that you're worried about as you can.
Russ Allbery (email@example.com) <http://www.eyrie.org/~eagle/>