RAID Speed Question

[bjmarler]

Hi all. I just got my ASUS A8V up and running. I set up a RAID 0 with 2 Segate 160GB SATA drives on the Promise controller. I set the cluster size to 64. I also have 2 IDE drives hooked up normal via ribbon cables if that matters.

My speed tests show about 50 MB/sec for the RAID array. The 2 IDE drives are just at 45 MB/sec. Is that normal for the RAID array? I thought it would be closer to 100 MB/sec, or at least a lot faster than the IDE drives???

Thanks for any comments and suggestions.

[Duke of Rezin]

Those speeds look about right to me. If you're using Sandra as your benchmark, the RAID scores that approach 100 are using 4 drives in RAID 0.
Also, after using a number of different RAID controllers, both integrated and add-on, and a number of different drives, and tweaking the h**l of Windows I have yet to be able to match the Sandra figures.