Subject: Re: RAID controller support, and/or RAIDFrame
To: Jonathan Stone <jonathan@DSG.Stanford.EDU>
From: Luke Mewburn <lukem@NetBSD.org>
List: port-i386
Date: 10/16/2003 13:36:32 
On Wed, Oct 08, 2003 at 06:12:16PM -0700, Jonathan Stone wrote:
  | 
  | OK, then how many MB/sec does your card do in a 32-bit/33MHz slot?
  | 
  | (You did  say "fast", any quantitatie estimate would do).

Using Seagate 120GB ST3120026AS SATA drives:

RAID-5 across 4 drives, 64KB stripe:
	reading 64k chunks: 22MB/s 

RAID-1 mirror across 2 drives:
	reading 64k chunks: 50MB/s 

RAID-0 across 2 drives, 64KB stripe:
	reading 64k chunks: 52MB/s 

(all tests with the really simple
	dd if=/dev/rldNd of=/dev/null bs=64k count=5000
)


Luke.