I have a Powervault 200S SCSI storage enclosure with 8 Seagate 50GB 7200 RPM SCSI drives. The drives are Ultra2 (80MB/s) and they are connected to a Compaq DL380 with an Ultra2 RAID controller. The array contains 7 drives in RAID 5 (one is an online spare). Using the quick benchmark in HD Tach, it's only reporting about 30-35 MB/s burst. This seems slow to me since it's in line with what I would expect from a normal IDE drive. I know the drives I have are a bit on the old side, but it seems like an array of 7 should be faster than a single IDE drive.
For comparison, I have a different computer with (3) 18GB 10,000 RPM SCSI Drives and it's bursting at 45 MB/s. That computer is actually quite a bit slower than the first, but the drive and controller setups are virtually identical except for the number of drives and the spindle speed.
For comparison, I have a different computer with (3) 18GB 10,000 RPM SCSI Drives and it's bursting at 45 MB/s. That computer is actually quite a bit slower than the first, but the drive and controller setups are virtually identical except for the number of drives and the spindle speed.