Chapter 4 System Configuration
4.5 Hot Spares
Example 3: Paired drives are installed in three different drive enclosures
Figure 4.11 Drive combination 3
A
Mirroring
C
B'
4.5
Hot Spares
Hot spares are used as spare drives for when drives in a RAID group fail, or when drives are in error status.
Figure 4.12 Hot spares
B
A'
Mirroring
C'
Failure
RAID group
ETERNUS DX80 S2/DX90 S2 Disk storage system Overview
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Hot spare
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