Apple Xserve RAID User's guide User's Guide download pdf (Page 11)

RAID Utility User Guide 11

Setting Up a Spare Drive

You can set aside an unassigned drive as a global spare. Then, if any drive in a RAID set

fails, the spare is automatically integrated into the set to take the place of the failed

drive. Only RAID 1, RAID 0+1, and RAID 5 sets can take advantage of spare drives.

To set up a spare drive:

1 Open RAID Utility.

2 Select the drive you want to use as a spare in the left column.

3 Choose RAID > Make Spare.

You can also assign unused drives as spares by selecting the “Use unassigned drives as

spares” option when you create a set using the Create RAID Set command.

Reverting a Spare Drive

You can use the Revert Spare command to return a spare drive to general availability

so you can use the drive to create RAID sets.

To revert a spare drive:

1 Open RAID Utility.

2 Select the drive in the left column.

3 Choose RAID > Revert Spare.

Deleting a Volume or RAID Set

As a rst step in modifying your RAID conguration, you can delete an existing volume

or RAID set to free up the drives needed to create a new volume or RAID set.

To delete the computer’s startup volume or the RAID set that the startup volume is

based on, you must rst start up the computer from a dierent disk that has the RAID

software installed, such as:

The Mac OS X or Mac OS X Server installation disc that comes with your computer Â

An external disk on which you’ve installed Mac OS X or Mac OS X Server using the Â

installation disc that comes with your computer

Important: When you delete a RAID set, all volumes based on that RAID set are also

deleted.

To delete a RAID set or a volume:

1 Open RAID Utility and choose the volume or RAID set in the left column.

2 Click Delete Volume or Delete RAID Set.

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Apple Xserve RAID User's guide User's Guide Page 11