Software Support

RAID Level Data
Availability
Read
Performance
Write
Performance
Rebuild
Performance
Minimum Disks
Required
Suggested
Uses
Transactional
reads: Very
good
writeback
cache
intensive
transactional
uses.
RAID 10 Excellent Very Good Fair Good 2N x X Data intensive
environments
(large
records).
RAID 50 Good Very Good Fair Fair N + 2 (N = at
least 4)
Medium sized
transactional
or data
intensive uses.
RAID 6 Excellent Sequential
reads: good.
Transactional
reads: Very
good
Fair, unless
using
writeback
cache
Poor N + 2 (N = at
least two disks)
Critical
information.
Databases and
other read
intensive
transactional
uses.
RAID 60 Excellent Very Good Fair Poor X x (N + 2) (N =
at least 2)
Critical
information.
Medium sized
transactional
or data
intensive uses.
N = Number of physical disks
X = Number of RAID sets
No-RAID
In Storage Management, a virtual disk of unknown metadata is considered a No-RAID volume. Storage Management
does not support this type of virtual disks. These must either be deleted or the physical disk must be removed. Storage
Management allows Delete and Rename operation on No-RAID volumes.
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