HP Surestore Disk Array 12h and FC60 - Manual (Page 57)

Disk Array High Availability Features 57
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RAID Level Comparisons
To help you decide which RAID level to select for a LUN, the following tables compare the
characteristics for the supported RAID levels. Where appropriate, the relative strengths
and weakness of each RAID level are noted.
Note RAID 3 is supported on Windows NT and Windows 2000 only.
Table 1 RAID Level Comparison: Data Redundancy Characteristics
RAID Level Disk Striping Mirroring Parity
Handle multiple disk
failures?
RAID 0 Yes No No No. RAID 0 offers no data
redundancy or protection
against disk failure. RAID 0
should only be used for non-
critical data. The failure of a
single disk in a RAID 0 LUN
will result in the loss of all
data on the LUN.
RAID 1 No Yes No No
RAID 0/1 Yes Yes No Yes, providing both disks in
a mirrored pair do not fail.
RAID 3 Yes No Yes No
RAID 5 Yes No Yes No