User Manual

5-645-64

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Chapter 5: RAID configurationChapter 5: RAID configuration

Chapter 5: RAID configuration

5.5.95.5.9

5.5.9

Rebuilding a RAID setRebuilding a RAID set

Rebuilding a RAID set

The utility displays the condition of the RAID set during the POST. When a

RAID set is degraded, you can use the utility to rebuild it.

• You may only rebuild Fault Tolerant arrays (RAID 1).

• If no spare exists and a hard disk drive fails, you need to create a

spare before you can rebuild an array.

• By replacing a failed drive of a RAID 1 array with a new drive, you

can rebuild to get the array to optimal status and assume fault

tolerance.

There are two ways to rebuild a RAID set: system shutdown rebuild and

manual rebuild. Refer to the sections below for details.

System shutdown rebuildSystem shutdown rebuild

System shutdown rebuild

When a RAID set drive fails or an array gets degraded, shut down the

system and replace the failed drive with a new one (of equal or greater

capacity). When you reboot the system, you can assign the new drive as a

spare, and automatically start the rebuild process. The existing drive data

is copied to the new one, and the original RAID 1 array is recreated.

Manual rebuildManual rebuild

Manual rebuild

To manually rebuild a RAID set:

1. Select

Manage ArraysManage Arrays

Manage Arrays from the Main Menu, then press <Enter> to

display the list of arrays.