|
RAID Description
The
Hardware RAID function is only enabled with your optional RAID
configuration in your purchase option. The RAID function will allow
you to use your Hard Disks in combination with Striping (RAID 0) or
Mirror (RAID 1) for fault tolerance and performance.
NOTICE:
| RAID Level |
Description |
| RAID 0 |
RAID 0 eschews the redundancy
of mirroring in favor of striping, which spreads one logical
drive over multiple physical hard drives. Blocks written to
and read from the array are spread over multiple disks, which
improves performance, but greatly reduces reliability. A
striped logical drive is vulnerable to the failure of any one
of its physical hard drives. If, for example, you had a
two-drive RAID 0 array, your MTBF is cut in half since you
have twice the exposure to drive failure. A failure of any
drive in a RAID 0 array will kill the array completely and
take with it all the data on the logical drive.
Though striping kills
redundancy, it at least maximizes the storage capacity of the
physical drives in the array. Since a RAID 0 array's logical
drive is spread over each physical drive, the total storage
capacity of the array is the sum of the physical drives'
storage capacities.
|
| RAID 1 |
RAID 1, otherwise known as
mirroring, duplicates the contents of your primary drive onto
an auxiliary drive to guard against physical drive failure. If
one or the other crashes, you have a perfect backup. However,
RAID 1 won't protect you against viruses or other threats to
the integrity of data on your hard drive; RAID 1 is
useful only for extending the Mean Time Between Failure (MTBF)
of your storage setup. In the event of a drive crash, just
replace the damaged disk with a new drive, and the RAID card
will rebuild the mirrored array
|
RAID Setup
To
create a Disk Array you will need to open the FastBuild Utility,
which it is built into the BIOS. Turn on the computer, and then
press the Ctrl + F key combination to enter the utility when
the following screen appear:
|
FastTRack 100 "Lite" (tm) BIOS Version
2.02.1.5
(C) 2002-2005 Promise Technology, Inc. All
rights reserved. |
|
No Array is defined
..................................
|
|
Press <Ctrl-F> to enter FastBuild
(tm) Utility or
Press <ESC> to continue booting
......
|
If you have a Disk Array
defined the following similar screen will appear:
|
FastTRack 100 "Lite" (tm) BIOS Version
2.02.1.5
(C) 2002-2005 Promise Technology, Inc. All
rights reserved. |
|
ID
MODE
SIZE
TRACK_MAPPING
STATUS
============================================================
1 1+0
Stripe
60011M
7295/255/63
Functional
|
|
Press <Ctrl-F> to enter FastBuild
(tm) Utility or
Press <ESC> to continue booting
......
|
You can create two type of Array as outlined in
table above "RAID Description"
After enter the FastBuild utility, the main
options will appear as followed:
-
Press the number to select your setup option
-
Press "Ctrl+Y" keys to save the
information
-
Restart the computer.
|