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Making Hot Spare

The Universal RAID Utility can make a Hot Spare to be replaced with a Physical Device in which a failure occurs.

Hot spares can have the following two modes.

Mode

Description

Global (Hot Spare) Available as a Hot Spare of every Disk Array for a single RAID Controller.

Dedicated (Hot Spare) Available as a Hot Spare of a specific Disk Array for a single RAID Controller.

In either mode, note the following to have a Hot Spare operate normally.

 A Hot Spare can operate properly only for a Disk Array configured with Physical Devices of the same interface

type and the same device type.

 A Hot Spare can operate properly only if the Hot Spare has the capacity equal to or larger than that of the

Physical Device in which a failure occurs.

 A Physical Device in which a S.M.A.R.T. error is detected cannot be used as a Hot Spare.

The maximum number of Hot Spares that can be created is 8 for N8103-109/128/134/135

RAID Controllers.

About Global Hot Spare

Global Hot Spare is a Hot Spare for all the Disk Arrays under a single RAID Controller.

Ex.1 : If you make the Global Hot Spare on the RAID Controller which has Disk Arrays #1 and #2, the Global Hot

Spare is a Hot Spare of Disk Arrays #1 and #2.

Figure 9 Global Hot Spare 1

Ex.2 : If you create the Disk Array #3 on the RAID System of Ex.1, the Global Hot Spare is a Hot Spare for the Disk

Array #3 too.

Figure 10 Global Hot Spare 2

Global Hot

Spare

Disk Array

Global Hot

Spare

Disk Array

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NEC Express5800/R110d-1E Guía de usuario Pagina 50