Re: Software RAID5 with 2.6.0-test

[jw schultz <jw@pegasys.ws>]

On Tue, Oct 21, 2003 at 09:51:59PM +0000, bill davidsen wrote:
> In article <20031018115049.GB760@gallifrey>,
> Dr. David Alan Gilbert <gilbertd@treblig.org> wrote:
> 
> |   I'd love to see some real benchmarks to prove me wrong however!
> 
> Okay, I'm scheduled to build a system next month, give me the name of a
> good controller which will do four drives and which can be used as a
> dumb controller as well, and I'll grab six drives for the build and run
> a test (baring a change in schedule, obviously).

I'd try the 3ware.  AC and others have reported good
throughput and, at least compared to SCSI, they aren't that
expensive and claim to support JBOD.  I just checked on
pricewatch and the 7506-4 can be had for about $250US and
the eight port for about $375.  Older models can be had for
less.  When the economy picks back up enough to improve my
bank ballance i'm planning to buy a few.

> I'll run as many RAID configs as make sense, whatever the hardware
> supports. And also four way RAID-1 for a heavy read application, to see
> if the software RAID does better than the controller, if it can do that
> at all.

-- 
________________________________________________________________
	J.W. Schultz            Pegasystems Technologies
	email address:		jw@pegasys.ws

		Remember Cernan and Schmitt