[7488] in linux-scsi channel archive
What is expected performance from H/W RAID 5?
daemon@ATHENA.MIT.EDU (Matthew Clark)
Sun Nov 7 12:34:58 1999
Reply-To: <m.r.clark@btinternet.com>
From: "Matthew Clark" <m.r.clark@btinternet.com>
To: "linux-raid" <linux-raid@vger.rutgers.edu>,
"linux-scsi" <linux-scsi@vger.rutgers.edu>
Date: Sun, 7 Nov 1999 17:24:05 -0000
Message-ID: <005c01bf2944$e43ea950$0100a8c0@netdespatch.co.uk>
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In-Reply-To: <Pine.HPX.4.20.9910281446320.27249-101000@ask.diku.dk>
What would be a decent write performance from a SCSI H/W RAID array?
We have 5 x Ultra Wide 9Gb 10000RPM SCSI Disks (So supposedly 40MB per SCSI
channel?) 4 of which are ONLINE with 1 Hot Spare..(RAID 5, 26Gb Logical
drive, MegaRAID controller, Single PIII 500 Xeon processor)
Now I would expect at least 15+ MB/sec from this array (Bonnie, Write Chars)
as I get around 8MB per sec from a single IDE drive..
Theoretically, it should be 20+ MB/sec shouldn't it?
Regards,
Matthew Clark.
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