On Nov 18, 2009, at 2:34 PM, Paul Fisher wrote:
Richard,
Thanks, that did help responsiveness of the system a bit.
Unfortunately it is still sluggish and and producing only 100M/s on
a 3 disk stripe, as well as a 16 disk set of mirrored vdevs. During
fmd is still right up there with dd competing for the top spot.
Still no good :-(.
Forget about the load average, it is completely useless information.
dd is
single threaded, so you will never see it use more than 6.25% of the CPU
(your test shows 5.1%). But the problem is likely to be that whatever
is
tickling fmd is serializing the I/O. You can get real I/O rates from
iostat,
but that won't help isolating the fmd problem. I think you should ask
about
this over on the fm-discuss forum.
-- richard
Richard Elling wrote:
Paul,
It sounds like the eft FMA agent is burning up the system. You
might try
to unload it and see if response perks up. In general, you can
use prstat,
top, or the system performance monitor app (can't remember its
real name)
to see what processes are using resources.
to see loaded FM modules:
pfexec fmadm config
to unload the eft module
pfexec fmadm unload eft
I suspect that the new hardware is not yet tested with eft. Check
with the
folks on fm-discuss for more info.
-- richard
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