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RAID Configuration
RAID Configuration
Below are the different types of a RAID.
RAID 0
breaks the data into blocks which are written to separate hard drives.
Spreading the hard drive I/O load across independent channels greatly
improves I/O performance.
RAID 1
provides data redundancy by mirroring data between the hard drives and
provides enhanced read performance.
RAID 5
provides data striping at the byte level and also stripe error correction
information. This results in excellent performance and good fault tolerance.
RAID 10
uses four hard drives to create a combination of RAID 0 and 1 by forming a
RAID 0 array from two RAID 1 arrays.
RAID level comparison
RAID 0
RAID 1
RAID 5
RAID 10
Minimum # drives
2
2
3
4
Data protection
None
Excellent
Excellent
Excellent
Read performance
Excellent
OK
Good
OK
Write performance Excellent
Good
OK
Good
Capacity utilization 100%
50%
67%~(1-1/n)
50%
Using Intel
®
Rapid Storage Technology Option ROM
First, you need to set the
SATA mode
to
RAID
in BIOS to create, delete and reset RAID
volumes. To enter the IRST Option ROM, reboot and press
Ctrl + I
keys to enter the
IRST Option ROM during the POST, the following window will appear.
MAIN MENU
[ ]
DISK / VOLUME INFORMATION
[ ]
4. Recovery Volume Options
5. Acceleration Options
6. Exit
RAID Volumes :
None defined.
Physical Devices :
Port Device Model Serial # Size Type/Status (Vol ID)
1 XXXX-XXXXXXXX XXXXXXXXXXXXXX XXX.XGB
Non-RAID Disk
2 XXXX-XXXXXXXX XXXXXXXXXXXXXX XXX.XGB
Non-RAID Disk
[ ↑↓] - Select [ESC] - Exit
[ENTER] - Select Menu
1. Create RAID Volume
2. Delete RAID Volume
3. Reset Disks to Non-RAID
[ ]
MAIN MENU
Important
The following procedure is only available with a newly-built system or if you are
reinstalling your OS. It should not be used to migrate an existing system to RAID.
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