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Refer to the table below to choose a RAID.
Table 7 RAID Description
TYPE
RAID 0
RAID 1
RAID 5
RAID 6
RAID 50
RAID 60
Table 8 RAID Comparison
GOAL
Efficiency and cost
Data Security
Data Security with
cost constraints
Data security for
enterprises
Backups with high
performance and no
cost constraints
Data Security with
cost constraints
Data security for
enterprises
Use Configuration > Setup Wizard to set up your UNS for the first time with a single RAID.
Alternatively, use Configuration > Storage Configuration > Pool > Create to configure RAID.
See the User's Guide or Web Help for configuration details.
UNS Series Hardware Installation Guide
Disk striping.
Disk mirroring over two disks.
Striping with interspersed parity over the member disks.
2-dimensional parity protection over the member disks.
Striping over the member RAID 5 volumes.
Striping over the member RAID 6 volumes.
RAID
SAFETY
SCHEME
RAID 0
None
RAID 1
Best
RAID 5
Good
RAID 6
Very good
RAID 10
Best
RAID 50
Good
RAID 60
Very good
Chapter 1 Hardware Installation
DESCRIPTION
MIN. NO. OF
USAGE
HARD DISKS
CAPACITY
2
All
2
50%
3
N-1 (N = no.
used)
4
N-2
4
50%
6
N-2
8
N-4
PERFORMANCE
Best
Best Read
Fast read, slower
write
Fast read, slower
write
Best Read
Fast read, slower
write
Fast read, slower
write
17
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