Apple M9450LL/A hard drive specifications
Apple Drive Module hard drive - 250 GB - SATA-150
The Apple Drive Module (ADM) is a hot-pluggable Serial ATA hard drive in a special drive carrier module designed for easy server upgradeability and maintenance. Apple Drive Modules operate at 7200 rpm and are equipped with 8MB disk cache. Using up to three 80GB or 250GB ADMs, the Xserve G5 can be configured from 80 to 750 gigabytes of internal storage. Unpopulated bays ship with a blank drive carrier which can be replaced with a drive module at any time - even if the server is running - so its easy to add storage capacity as your server needs grow. Each ADM has two LED activity lights - one indicating drive activity and one indicating drive status. All Apple Drive Modules support SMART - Self Monitoring and Reporting Technology - allowing the hardware monitoring tools including with Xserve G5 to monitor the status of each hard drive and report pre-failure warnings before problems occur. This product is compatible only with the new Xserve G5.
Recommended software for Apple M9450LL/A status and S.M.A.R.T. monitoring is ActiveSMART www.ariolic.com