Subject: Re: cheap RAID?
To: Edwin Foo <>
From: Manuel Bouyer <>
List: current-users
Date: 06/09/1999 20:38:17
On Wed, Jun 09, 1999 at 09:26:26AM -0400, Edwin Foo wrote:
> Hi all,
> I've been trying to set up a NetBSD mail/web server for a non-profit I'm
> doing some pro bono work for, and I have run up against a performance
> problem. Basically, the IMAP server seems to take forever for large
> mailboxes. I think it is an I/O problem, so I'm looking for a cheap RAID or
> otherwise fast I/O solution. Cost is of the essence.
> If someone else thinks I'm barking up the wrong tree, please do let me know.
> For reference, the system in question is a Pentium-Pro 200, 64 MB RAM, 4.2
> gb EIDE boot disk, and 8 gb EIDE data disk. IMAP server is imap-uw 4.5 from

What version of NetBSD are you using ?
If it's 1.3 you can try the IDE DMA patches, on modern disks this typically
bumps the transfert rate from 4MB/s to more than 10.
If it's 1.4, then it's already there.

Manuel Bouyer, LIP6, Universite Paris VI.