Gordon Henderson wrote:

On Sun, 10 Oct 2004, Robin Bowes wrote:

quoted

This gave the following results:

Version  1.03       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
dude.robinbow 3096M 13081  95 34159  75 12617  21 15311  92 40429  30 436.1   3
dude.robinbowes.com,3096M,13081,95,34159,75,12617,21,15311,92,40429,30,436.1,3,,,,,,,,,,,,,

I don't actually know what the figures mean - is this fast??

It's not brilliant, but reasonable for a RAID5 on IDE drives. Disk head
bandwidth for comodity 7200 RPM drives is about 55MB/sec peak - although I
haven't been able to get that with the SATA controllers I've used so-far,
but I suspect thats because they are running in PATA mode.

Just a point of reference. This is on a single Athlon 2600+ with 10 7200 RPM Maxtor drives on 3 
Promise SATA150TX4 controllers

Version  1.03       ------Sequential Output------ --Sequential Input- --Random-
                     -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
srv              1G 14502  45 23251  12 17102   9 23390  67 67688  24 638.4   1
srv,1G,14502,45,23251,12,17102,9,23390,67,67688,24,638.4,1,,,,,,,,,,,,,

Brad