>
> 	Just a datapoint. Switching a Dell poweredge 350 (entry level
> 	celeron 850) running RAIDFRAME on two 111GB disks from both
> 	disks on the same channel to individual channels changed the
> 	bonnie++ numbers as below:
>
> Version  1.01       ------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
> same-channel   300M  9239  31 10083  18  4019   7  7402  29  8841   8  89.2   3
> separate-chan  300M  9441  31 10214  18  5370  10  8271  34 10943  11 140.0   4

quite large difference excluding writes, where disk write buffers accept
data immediately.

anyway 8-10MB/s is similar to my Pentium 133 with old 20GB seagate.
is your system well configured at all?