suggestions for SATA RAID cards

[Mark Kirkwood]

Steven Hartland wrote:

> I believe you are wrong here and my own performance tests here
> backs this up, showing it keeps up with the more expensive areca
> in a number of areas notably, providing 180MB/s in sequential
> read tests from a 5 disk array.
> 

Steve,

Just out of interest what RAID level was the 5 disk array? - as 180Mb/s 
from an Areca 5 disk RAID0 or RAID5 array is not that good - my old 
3Ware 7506 with 4 Maxtor IDE RAID0 gets 175Mb/s. Obviously if your array 
is RAID10, the 180MB/s is very good!

If you are using RAID0|5, then something is slowing you down (possible 
clash between disk firmware and the Areca, or unfortunate choice of 
strip chunk size).

Cheers

Mark