Dell XPS 420 (Late 2007) - Manual (Page 32)

32
Setting Up and Using Your Computer
If a drive failure occurs, subsequent read and write operations are directed to
the surviving drive. A replacement drive can then be rebuilt using the data
from the surviving drive.
NOTE:
In a RAID level 1 configuration, the size of the configuration is equal to the
size of the smallest drive in the configuration.
Configuring Your Computer for RAID
Your computer can be configured for RAID, even if you did not select a RAID
configuration when the computer was purchased. You must have at least two
hard drives installed in your computer to set up a RAID configuration. For an
explanation of RAID levels, see "About Your RAID Configuration" on page 30.
For instructions on how to install a hard drive, see "Installing a Hard Drive" on
page 130.
You can use one of two methods to configure RAID hard drive volumes.
The first method uses the Intel
®
RAID Option ROM utility and is performed
before you install the operating system onto the hard drive. The second
method uses the Intel
®
Application Accelerator and is performed after you
have installed the operating system.
Both methods require that you set your computer to RAID-enabled mode
before beginning any of the RAID configuration procedures in this document.
hard drive 1
segment 1
segment 2
segment 3
hard drive 2
segment 4
segment 5
segment 6
segment 1 duplicated
segment 2 duplicated
segment 3 duplicated
segment 4 duplicated
segment 5 duplicated
segment 6 duplicated
serial ATA RAID
configured for
RAID level 1
book.book Page 32 Tuesday, November 27, 2007 10:29 AM