On Fri, Nov 13 at 15:58, Tim Cook wrote:
On Fri, Nov 13, 2009 at 2:48 PM, Orvar Korvar <
knatte_fnatte_tja...@yahoo.com> wrote:

Yes I do fine. How do you do-be-do-be-do?

I have OpenSolaris b125 and filled a zpool with data. I did scrub on it,
which took 8 hours. Some of the drives were connected to the mobo, some of
the drives were connected to the AOC-MV8... marvellsx88 card which is used
in Thumper. Then I connected all drives to the AOC-MV8... card and did a
scrub again. With the same data, nothing changed. And suddenly it took
15hours. zpool iostat doesnt show any errors or something unusual. The
system is otherwise idle. When I issue a scrub, there will be a forecast and
in the first case it said 8h. The scrub finished in 8h. Then I reconnected
the cables and the scrub forecast said 15h, which it did.

So, if nothing is changed on the zpool, why does scrub finish in 8h, and
then rearranging the SATA cables, it takes 15h - with the same data?

What's the motherboard model?

Is the AOC-MV8 plugged into a PCI or PCI-X slot?  Is the HBA saturated?

When you were putting half on this card and half on the motherboard,
you were using multiple IO paths that you aren't once all the IO is
through the card.

--
Eric D. Mudama
edmud...@mail.bounceswoosh.org

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