First, I apologize, I listed the Antares in my original post, it was one of two
scsi cards I tested with. The posted CPU snapshots were from the LSI 22320
card (mentioned below).
I've tried this with two different SCSI cards. As far as I know, both are
standard SCSI cards used for Suns.
I'm starting simple, there is no app.
I have a 10GB file (called foo) on the internal FC drive, I did a zfs create
raidz bar
then ran cp foo /bar/, so there is no cpu activity due to an app.
As a test case, this took 7 min 30 sec to copy to the zfs partition. I removed
the pool,
As added information, top reports that cp is using about 25% of the single
cpu. There are no other apps running.
Bob
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One last tidbit, for what it is worth. Rather than watch top, I ran xcpustate.
It seems that just as the writes pause, the cpu looks like it hits 100% (or
very close), then it falls back down to its lower level.
I'm still getting used to Solaris 10 as well, so if you have a DTrace script