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Date:      Sun, 05 Feb 2006 14:59:02 +0100
From:      Philippe Pegon <Philippe.Pegon@crc.u-strasbg.fr>
To:        Ivan Voras <ivoras@fer.hr>
Cc:        stable@freebsd.org
Subject:   Re: Compaq Proliant CISS slow writes
Message-ID:  <43E604A6.8030500@crc.u-strasbg.fr>
In-Reply-To: <43E5F029.2010005@fer.hr>
References:  <43E52A89.4020700@fer.hr> <43E5DBD4.8010908@crc.u-strasbg.fr>	<43E5DCC9.500@fer.hr> <43E5ED00.5030204@crc.u-strasbg.fr> <43E5F029.2010005@fer.hr>

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Ivan Voras wrote:
> Philippe Pegon wrote:
> 
>> If I remember correctly, you can see it at boot time. I don't know how 
>> to find it when FreeBSD is up. Maybe someone else knows it (if it's 
>> possible) ?
> 
> 
> It doesn't mention cache when booting and initialising the array.

I'm not sure, but I believe that the Smart Array 532 doesn't have write 
cache and doesn't support it :

http://h18004.www1.hp.com/products/servers/proliantstorage/arraycontrollers/smartarray532/questionsanswers.html#11

and in the specs :

http://h18004.www1.hp.com/products/quickspecs/10851_div/10851_div.html

"
32MB Memory optimizes performance and data throughput.
NOTE: 32 MB of DRAM used for code, transfer buffers, and non-battery 
backed read cache
"

--
Philippe Pegon



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