HP LH4r Ultra Hot Swap Hard Disk Drive and Tray - Page 15

3 Application Alerts D4903A Cooling Requirements The D4903A mass storage device is the first of a family of high performance 10K RPM drives. Adequate cooling is very important. The D4903A drive is currently supported in the LH Plus, LH Pro, LD Pro, LX Pro, LXe Pro, and Storage System/6. The drive is not supported in the LH and LS. D3604A/B Storage System/6 using Ultra SCSI Drives Ultra SCSI is an industry standard for transferring data. HP NetServer drives that come installed as part of Ultra Hot Swap drive accessories are Ultra SCSI capable. However, Ultra SCSI requires that all components of the system be Ultra SCSI capable, including the controller, the drives, and the connections. Since the D3604A/B Storage System/6 is Fast SCSI (20 MB/sec) capable but not Ultra SCSI capable, this drive cannot be used in Ultra SCSI mode when installed into a D3604A/B Storage System/6. Fast SCSI (not Ultra SCSI) must be enabled in the host system, if it is connected to the Storage System/6 with Ultra SCSI drives installed. Complete information on using Ultra SCSI in your NetServer can be found on the HP NetServer "News Updates and Information" web page at: http://www.hp.com:80/netserver/support/news_main.html under "Using Ultra SCSI in your HP NetServer" Hot Swap Drives Must be Parked Prior to Removal To prevent handling damage (for example, head slaps or head actuator unlocking) to a good drive during removal, perform the following steps: 1. Unlatch the drive. 2. Pull the drive out about an inch (2.5 cm) to break the power connection. 3. Wait about 30 seconds for the drive to stop spinning and the drive heads to park. 4. Carefully remove the drive. 11