Internal RAID Management
The subsystem can implement several different levels of RAID technology. RAID levels supported by
the subsystem are shown below.
RAID Level
Description
Min. Drives
0
Block striping is provide, which yields higher
performance than with individual drives. There is no
redundancy.
1
1
Drives are paired and mirrored. All data is 100%
duplicated on an equivalent drive. Fully redundant.
2
3
Data is striped across several physical drives. Parity
protection is used for data redundancy.
3
5
Data is striped across several physical drives. Parity
protection is used for data redundancy.
3
6
Data is striped across several physical drives. Parity
protection is used for data redundancy. Requires N+2
drives to implement because of two-dimensional parity
scheme.
4
10 (1E)
Combination of RAID levels 0 and 1. This level provides
striping and redundancy through mirroring. RAID 10
requires the use of an even number of disk drives to
achieve data protection, while
RAID 1E
(Enhanced
Mirroring) uses an
odd number
of drives.
4 (3)
30
Combination of RAID levels 0 and 3. This level is best
implemented on two RAID 3 disk arrays with data
striped across both disk arrays.
6
50
RAID 50 provides the features of both RAID 0 and RAID
5. RAID 50 includes both parity and disk striping across
multiple drives. RAID 50 is best implemented on two
RAID 5 disk arrays with data striped across both disk
arrays.
6
60
RAID 60 combines both RAID 6 and RAID 0 features.
Data is striped across disks as in RAID 0, and it uses
double distributed parity as in RAID 6. RAID 60
provides data reliability, good overall performance and
supports larger volume sizes.
RAID 60 also provides very high reliability because data
is still available even if multiple disk drives fail (two in
each disk array).
8
Summary of Contents for TRITON 16Ni
Page 1: ...SurfRAID TRITON 16Ni User s Guide Revision 1 1...
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Page 67: ...5 3 7 Stop Volume Check Use this option to stop current running Check Volume Set process...
Page 111: ...4 Verify the new LV size...
Page 135: ...4 The iSCSI logical volume capacity is extended...
Page 236: ...2 Select Set LAN Configuration and press Enter key 3 Setup LAN Configuration...
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