Re: 3ware disk latency?

From: Jan Kasprzak
Date: Thu Jul 27 2006 - 08:14:39 EST

dean gaudet wrote:
: my suspicion is the 3ware lacks any sort of "fairness" in its sharing of
: buffer space between multiple units on the same controller. and by
: disabling the write caching it limits the amount of controller memory that
: the busy disk can consume.

Hmm, do you have a battery backup unit for 9550sx? I don't,
and the 3ware BIOS does not even allow me to enable write caching without it.
So I don't think the write caching on the controller side is related
to my problem.

I have been able to improve the latency by upgrading the firmware
to the newest release (wow, they even have a firmware updating utility
for Linux!).


| Jan "Yenya" Kasprzak <kas at { - work | - private}> |
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