[OpenAFS] Re: System resources requirements and performance tuning for AFS file servers

Jeff Blaine jblaine@kickflop.net
Fri, 15 Aug 2014 13:56:44 -0400

> On Thu, 14 Aug 2014 18:22:17 -0500
> Brian Sebby <sebby@anl.gov> wrote:
>> I=E2=80=99m starting a project to migrate our AFS cell from the ancien=
>> Solaris servers that it currently lives on to a number of RHEL VMs in
>> our VMware infrastructure.  One of the significant issues we=E2=80=99v=
e had
>> for a long time is that performance is lousy on our current servers,
>> and I=E2=80=99d like to make that better.

We did exactly this for our DB servers (and left them there) and tested
it with 1 fileserver for a bit.

Your best bet is to quantify "current slow" with data, then stand up a
few test VMs (2core, 4core, various fileserver params) and gather their
performance data under the same tests.

Unfortunately, our fileservers are still left on the old Suns while we
figure out whether or not we're willing to stoop to XFS on RHEL (support
contract, known choice of OS) or add complexity to our world by using
OmniOS or FreeBSD to retain ZFS.

Jeff Blaine
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