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2.1 Hot Spare Feature
Hot Spare disks can be installed in the disk array unit. If a disk drive becomes defective, the data in the
defective disk drive is recovered in the spare disk. After the data recovery, the disk drive operates
normally while the defective disk is replaced. A defective disk drive can be replaced without turning
off the power of the disk array unit.
With the factory defaults, the replaced disk drive works as a spare disk.
The data can also be recovered in another other disk enclosure.
The diagram below presents an example of the hot spare operation
PDN14 Spare
disk
PDN14
PDN14
PDN13
PDN13
PDN13
PDN12
PDN12
PDN12
PDN11
PDN11
PDN11
PDN10
PDN10
PDN10
PDN9
PDN9
PDN9
PDN8
→
PDN8
→
PDN8
PDN7
PDN7
PDN7
PDN6
PDN6
PDN6
PDN5
PDN5
PDN5
PDN4
PDN4
PDN4
PDN3
PDN3
PDN3
PDN2
LDN0 RAID5
PDN2
LDN0 RAID5
PDN2
LDN0 RAID5
Spare Disk
PDN1
PDN1
PDN1
PDN0
PDN0
PDN0
Failure in PDN1
Recovery of data
in spare disk
Replacement of PDN 1
* PDN (Physical Disk Number): Disk drive
LDN (Logical Disk Number): Logical Disk Number
Do not move any of the factory-installed disk drives into another slot.
The spare disk can operate properly only when it has a capacity and a
rotational speed equal to the defective disk drive.
If disk drives having different capacities and/or revolutions coexist, spare
disks of the different capacities and/or revolutions must be defined to manage
the disk drives clearly.
Up to 32 spare disks may be installed in the entire disk array unit.
Содержание NF2900-SR40E
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Страница 9: ...vi ...
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Страница 13: ...x NF2900 SR40E ...
Страница 24: ...7 ...
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Страница 52: ...35 Sample configuration 1 NF2900 SR40E NF2900 SP02E NF2500 SE42E 16 ...
Страница 65: ...48 capacity and rotational speed be used together ...
Страница 76: ...59 Be careful as this may be hot ...
Страница 80: ...63 Note The figure above indicates the addition of NF2900 SC01E ...
Страница 133: ...116 DE Location View DE00 DE01 DE05 DE09 DE0 DE0 DE04 DE08 DE03 DE07 DE0 DE0 DE02 DE06 DE0 DE0 ...
Страница 134: ...117 1 2 5 Network Property Select 4 Configuration 7 Network Property to set the following items ...