On Aug 20, 2009, at 10:08 AM, Roman Naumenko <no-
[email protected]> wrote:
If your pool has few vdevs (I believe you had a single raid-z),
then this will be slow, as you will probably get only about 100 IOP/
s from your pool. My exchange server happily produces 1500 IOP/s in
daily use, and would go higher but our current array wont go any
faster for un-cached IO. :-)<p>
How do you check iops?
I saw "writes" > 1000 in zpool iostat when I tested pool with sqlio
over iscsi.
But it was async, of course.
I didn't find a way to make sync synthetic writes on windows, so I'm
waiting fr exchange to see what kind of writes it makes.
I can't figure out why that is.
Which version of OS are you running?
What's your comstar configuration for the target?
Do you have write-back caching set on the initiator's iSCSI volume?
-Ross
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