Subject: Re: ccd vs. raidframe performance [was Re: ccd/SCSI error]
To: Thor Lancelot Simon <tls@rek.tjls.com>
From: Erik Rungi <blackbox@openface.ca>
List: port-i386
Date: 06/29/1999 06:52:06
On Mon, 28 Jun 1999, Thor Lancelot Simon wrote:

> On Mon, Jun 28, 1999 at 02:16:42PM -0700, Aaron J. Grier wrote:
> > On Mon, Jun 28, 1999 at 05:00:29PM -0400, Erik Rungi wrote:
> > 
> > > Oog.  If this happens again I'm replacing the drive.  Its brand new, but I
> > > can't afford to have data corruption.
> > 
> > If you can't afford data corruption, why are you running RAID0?  With
> > three drives you could run RAID5 and still be running after a single
> > drive failure.
> 
> And have performance that was so bad, you might as well have used floppies.
> 
> I've been extremely disappointed in the performance of RAIDframe, no matter
> how I configure it.  Even a stripe/mirror setup yields about 1/4 the 
> performance of one of the underlying drives.

Please tell me this "floppy drive speed" comment is an exagerration.  If
degraded mode performance is really that bad, there's probably not much point
in me pursuing a raid5 solution.

Erik