RAID controller question...

[Michael Pearl]

Have you looked at DPT's controllers?  I don't have performance numbers,
but I am currently running RAID-5 using a 2144UWR with RedHat 5.0.

...Mike Pearl
michaelp@tpg.com

		-----Original Message-----
		From:	Christian Worley [mailto:cworley@altatech.com]
		Sent:	Tuesday, September 08, 1998 11:54 AM
		To:	Stanley, Jeremy; 'Beowulf Cluster Mailing List';
'Extreme Linux Mailing List'
		Subject:	Re: RAID controller question...

		Stanley, Jeremy wrote:
		> 
		>  Thus, I need
		> a controller with hardware-level RAID support.  I've
found two models
		> which I think will work, but can't find pricing on
either and am not
		> sure if LINUX drivers exist for each.  The controllers
are:
		> 
		>         Adaptec AEC-4412BD
		>         AMI MegaRAID® Ultra2/5 (Series 438)
		> 

		Vortex has Linux drivers for 2.0.x and 2.1.x Linux
kernels (I've tried
		both, and both work).  They can be seen at:

		http://www.icp-vortex.com/

		Using RAID-0 I've been able to get 20MBytes/sec write
performance
		(with a "dd of=/dev/sda if=/dev/zero bs=65536
count=65536").  RAID-5,
		I get under 10MBytes/sec.  Read times are faster.

		They have a configuration tool called gdtmon, and a
version that works
		in Linux.  But, their scsi bios requires a video card
(no headless
		operation).

		Chris
		-- 
		  When I die, please cast my ashes upon Bill Gates
		   --for once, let him clean up after me!