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> if striping the drives helped (we backup and restore nightly to a hot > spare Be aware that with just two disk and striping (RAID 0) failure of one disk will make the other unusable. Your machine will be off-line until the disk is replaced, and depending on the whole disk being striped or only the data partition, it will take some time to be available again. I'd use a mirror, and if some more performance is needed, I'd add two more disk and set it up for RAID 1+ 0. This way a disk failure won't stop the server. Also, I'd check if the chipset and SATA controller offer some hardware RAID features, most chipset now offer some kind of software + hardware RAID features. Also, be aware that some controllers defaults to IDE compatible SATA mode. SATA controllers may offer AHC mode, thats should be more perfomant and coupled with the proper disks offer SCSI-like features like queue reordering. -- Luigi D. Sandon