I had to replace a failed 80GB IDE disc drive on an older system based on a Gigabyte GA-7DXR mainboard, with Promise FastTrack RAID controller built-in.
Normally, this RAID 0 array did 60MB/S read/write, however, after having a drive fail, and after replacing, rebuilding the array (this time with a 128K stripe instead of 64K stripe--could that be the cause?) the array write speeds are down to 3MB/S and read is 16MB/S. I formatted NTFS with a fairly large allocation unit size, and, as I mentioned in parenthesis, I built the array in BIOS with a larger stripe size this time and am wondering if perhaps there's a problem with this controller and 128K stripe size. Perhaps I need to rebuild with 64K stripe as before to get normal performance?
Normally, this RAID 0 array did 60MB/S read/write, however, after having a drive fail, and after replacing, rebuilding the array (this time with a 128K stripe instead of 64K stripe--could that be the cause?) the array write speeds are down to 3MB/S and read is 16MB/S. I formatted NTFS with a fairly large allocation unit size, and, as I mentioned in parenthesis, I built the array in BIOS with a larger stripe size this time and am wondering if perhaps there's a problem with this controller and 128K stripe size. Perhaps I need to rebuild with 64K stripe as before to get normal performance?