StorCase Technology InfoStation 5-Bay SATA 3Gbps RAID - Manual (Page 32)

22 RAID Configuration
StorCase Technology, Inc. InfoStation 5-Bay RAID User's Guide - Rev. C00
Table 1: RAID Level Comparisons
Comparing RAID Levels
Table 1 illustrates the differences between the various RAID levels.
RAID
Level
Minimum #
of Drives
Description Pros Cons
RAID 0 2 Data striping
without
redundancy
Highest
performance
No data protection - if
one drive fails, all data
is lost
RAID 1 2 Disk mirroring Very high
performance and
data protection
Good write
performance
High redundancy
costs - twice the
storage capacity is
required
JBOD
RAID 10
RAID 0/1
4 Combination of
RAID 0 (data
striping) and
RAID 1
(mirroring)
Highest
performance and
data protection
(can tolerate
multiple drive
failures)
High redundancy
costs - twice the
storage capacity is
required
1 Non-RAID,
non-striped
mapping to a
single drive
(similar to
JBOD)
Ability to use a
single drive to
store additional
data
No data protection - if
drive fails, all data is
lost
Lower performance
(not striped)
Maximum #
of Drives
5
2
4
5