On Thu, Aug 24, 2006 at 07:59:11AM +0300, Jukka Marin wrote:
> On Wed, Aug 23, 2006 at 01:37:42PM -0700, Simon J. Gerraty wrote:
> > twe0: 4 ports, Firmware FE6X 1.02.28.053, BIOS BE6X 1.07.02.005
> > twe0: Monitor ME6X 1.01.00.028, PCB Rev2    , Achip V4.40   , Pchip V5.70   
> > twe0: port 0: MAXTOR 6L080L4                           76345 MB
> > twe0: port 1: MAXTOR 6L080L4                           76345 MB
> > twe0: port 2: ST3300622A                               286168 MB
> > twe0: port 3: ST3300622A                               286168 MB
> 
> Can you post some benchmark results of the RAID system?  I'm (going to) use
> raidframe (RAID1) on SATA2 disks which seem to have a sustained speed of
> 63 MB/s (when fixing raidframe parity), but the performance of the raidframe
> disk is only a fraction of this.  I'm wondering if a hardware RAID controller
> makes a real difference here.

On a 3ware 9550 (6 disk raid5) with a battery backup unit, I can write at more
than 180MB/s.  I think the key is the battery backup for RAID5 write speed.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--