Dell Precision T5400 (Late 2007) - Manual (Page 53)

Advanced Features 53
Configuring Your Computer for RAID
At some point you may want to configure your computer for RAID if you did
not select a RAID configuration when you purchased your computer. You
must have at least two hard drives installed in your computer to set up a
RAID configuration. For instructions on how to install a hard drive, see
"Cards" on page 193.
To configure a RAID hard drive volume, use the Intel RAID Option ROM
utility before you install the operating system onto the hard drive. You must
set your computer to RAID-enabled mode before starting any of the RAID
configuration procedures in this document.
Setting Your Computer to RAID-Enabled Mode
NOTE: This procedure is only possible if you ordered your computer with a RAID
configuration.
1 Enter the system setup program (see "System Setup" on page 89).
2 Press the up- and down-arrow keys to highlight Drives, and press
<Enter>.
3 Press the up- and down-arrow keys to highlight SATA Operation, and press
<Enter>.
4 Press the left- and right-arrow keys to highlight RAID Autodetect /AHCI
or RAID Autodetect/ ATA, according to your preferences; press <Enter>,
and then press <Esc>.
For more information about RAID options, see "System Setup Options" on
page 89.
5 Press the left- and right-arrow keys to highlight Save/Exit, and press
<Enter> to exit system setup and resume the boot process.
Configuring Your Computer for RAID Using the Intel Matrix Storage
Manager
NOTE: This procedure is only possible if you ordered your computer with a RAID
configuration.
If you already have one hard drive with the operating system installed on it,
and you want to add a second hard drive and reconfigure both drives into a
RAID volume without losing the existing operating system and any data, you
need to use the migrating option for a RAID level 0 configuration (see