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Apple Xserve RAID User Manual

Page 71

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72

Chapter 8

RAID 3 and 5 Schemes

You can use RAID 3 or 5 with or without a drive module designated as a hot spare. You can
use RAID 3 or 5 with four drive modules on one controller and three on the other or with all
the modules on one RAID controller. If a hot spare is used, it serves all arrays on the
controller where the spare is located.

RAID 3 or 5

RAID 3 or 5

RAID 3 or 5

RAID 3 or 5

Hot spare

RAID 3 or 5

RAID 3 or 5

RAID 3 or 5

RAID 3 or 5

RAID 3 or 5

RAID 3 or 5

Hot spare

Disk 1

Disk 2

Appears

as

Disk 1

Disk 2

Appears

as

Disk 1

Appears

as

Disk 1

Appears

as