Boot Order; Hard Drive Configurations; Sata Raid Configurations - HP xw4200 Service And Technical Reference Manual

Boot Order

You can modify the boot order in the Computer Setup Utility by arranging the Controller Order on the
Storage tab. You can also arrange the boot order on the Storage tab.

Hard Drive Configurations

Whenever one or two drives are to be connected to a plug-in controller, HP recommends that those
drives be mounted in the hard drive bays to simplify cabling. When a third drive is needed in the optical
bay, it can also be connected to the plug-in controller, or to a system board if it is a SATA drive. A bracket
is required to mount a hard drive in the optical bays.
NOTE The first hard drive bay is the recommended position for the drive containing the bootable OS.

SATA Raid Configurations

This workstation supports an embedded SATA RAID. RAID (Redundant Array of Inexpensive Disks)
combines multiple physical drives together to provide either increased performance or increased
redundancy.
For an embedded SATA RAID, there are two primary configurations.
RAID 0 is a striping configuration. For example, this combines two 80 GB drives into one 160 GB
drive. Both physical drives can be accessed simultaneously for better performance. This is faster
than using two 80 GB drives separately.
RAID 1 is a mirroring configuration. For example, this uses two 80 GB drives, but one drive is a
complete mirror of the other drive. The system remains functional and no data is lost if one of the
drives should fail.
There are other RAID configurations, but they are not supported on an embedded SATA RAID.
NOTE For information on the integrated SATA RAID, visit http://www.hp.com/go/workstationsupport and
review the supplier's documentation. For information on supported SATA RAID configurations, visit
http://www.hp.com/go/productbulletin.
158 SATA DEVICES