From owner-freebsd-scsi  Mon Jul  9  2:19:24 2001
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Date: Sun, 08 Jul 2001 12:48:40 +0200
To: freebsd-scsi@freebsd.org
From: Len Conrad <LConrad@Go2France.com>
Subject: AMI MegaRAID 1500/1600 for mail gateway
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FreeBSD 4.3R

Looking to build some high perf outbound mail gateways.  The disk i/o is 
the limiting factor, as we painfully noted when we saw with a ATA100 drive 
that couldn´t relay more than 9k msgs/hour to Internet, where a msg was 15 
to 20k.

So we´re looking at 15K RPM disks and 160 mb/sec controllers with 
battery-backed cache of 64 or 128 megs.

Anybody used the MegaRAID 1600 or 500 with 15K disks and that much cache? 
or any on-board cache?

This is my first time with FreeBSD and SCSI. Is there any how-to on the 
(MegaRAID) scsi on-board bios params to make happy with the (amr) scsi driver?

Len


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