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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 RAID Option ROM
First, you need to set the SATA mode to RAID in BIOS to create and delete RAID
volumes. To enter the RAID Option ROM, reboot and press Ctrl + F keys to enter the
RAID Option ROM during the POST, the following window will appear.
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