NEC EXPRESS5800 User Manual page 63

<Example of manual transition>
1. Original state: RAID1
Create spare drives of revertible type. (See "3.15 Creating or Deleting Spare Drives" for
details.)
Revertible
2. Occurrence of a fault in PD2
A fault occurs in a physical drive among those configuring a disk array. The disk array is
entered into the degraded state (logical drives are entered into the critical state).
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