Date: Tue, 05 Feb 2008 21:05:40 +0100 From: Marko Lerota <mlerota@iskon.hr> To: Scott Long <scottl@samsco.org> Cc: freebsd-scsi@freebsd.org Subject: Re: LSI 1064E poor performance Message-ID: <86odavcgob.fsf@zid.claresco.hr> In-Reply-To: <47A89582.6050202@samsco.org> (Scott Long's message of "Tue, 05 Feb 2008 09:57:38 -0700") References: <863as8znaf.fsf@zid.claresco.hr> <47A74782.5070408@samsco.org> <86sl08y56d.fsf@zid.claresco.hr> <86lk5zesmr.fsf@zid.claresco.hr> <47A89582.6050202@samsco.org>
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Scott Long <scottl@samsco.org> writes:
>>>> Go to the BIOS and turn on the cache for the array.
>>> There is no any cache option in BIOS to tourn on, or in
>>> LSI setup utility (CTRL+c)
>> I installed debian and it's working fine. Do I really have to switch
>> to Linux?
>
> I'll say it one more time. Go into the BIOS for the _controller_ and
> turn on the cache.
I'll say it one more time, there is no any cache option in BIOS of the
controller :). It's IBM X3250.
> Yes, linux performs better at 'dd' in the non-cache
> case because linux sends larger i/o's down to the controller than
> freebsd does. This difference matters little when doing real file
> i/o.
> So no, you don't have to switch to linux, and no, linux doesn't actually
> perform better.
I did not, I switch to HP :)
--
One cannot sell the earth upon which the people walk
Tacunka Witco
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