[LUAU] 3ware RAID cards - performance/optimization

[Michael_Bishop/FARRINCS/HIDOE at notes.k12.hi.us]

>From the K12LTSP list... an interesting post about 3ware RAID cards (my
personal favorite)...


Message: 3
Date: Fri, 02 Apr 2004 14:04:13 -0500
From: Eric Feldhusen <efeldhusen at chartermi.net>
Subject: [K12OSN] Followup on 3ware ide raid cards.
To: k12osn at redhat.com
Message-ID: <406DB92D.6090300 at chartermi.net>
Content-Type: text/plain; charset=us-ascii; format=flowed

Just a fyi,

If anyone is running a 3ware raid card, check out the 3ware
knowledgebase for  Q10036, which is Performance/Optimization: How can
3ware read performance be increased in Linux?

It's worth the read, especially after my file/print/home directory
server took 10 hours last night to rsync 60GB from one partition on a
RAID5 IDE array to another partition on the same array.

I just made the first recommended change for max and min readahead to my
3ware 7500-8 card and saw noticeable results in memory, load, and irq
changes with the webminstats package, already. And the system "feels"
more responsive.

3ware Knowledgebase
http://www.3ware.com/KB/kb.asp

Webmin
http://www.webmin.com/

Webminstats
http://webminstats.sourceforge.net/

--
Eric Feldhusen
Network Administrator for Adams, Chassell,
Dollar Bay, and Lake Linden Public Schools

email: eric at remc1.k12.mi.us