Administrator Guide

Table Of Contents
Managing RAID
Modifying tier redundancy, or adding or removing disks can cause data to be unevenly distributed across disks. A RAID rebalance
redistributes data over disks in a disk folder.
Rebalance RAID
Rebalancing RAID redistributes data over the disks according to the Storage Type. Rebalance the RAID after releasing a disk
from a disk folder, when a disk fails, or after adding a disk.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of
Unisphere Central.
2.
From the
STORAGE menu, click Disks.
The Disks view is displayed.
3. Click Rebalance RAID.
The RAID Rebalance dialog box opens. If a RAID rebalance is needed, the dialog box shows RAID rebalance options.
4. Select Perform RAID Rebalance immediately.
5. Click OK.
Cancel a RAID Rebalance
Cancel a RAID rebalance to stop an on-going RAID rebalance. Cancelling a RAID rebalance does not cancel the need to
rebalance. You will still be prompted to rebalance RAID.
About this task
NOTE: The RAID rebalance stops after completing the current rebalance pass.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of
Unisphere Central.
2.
From the
STORAGE menu, click Disks.
The Disks view is displayed.
3. Click Rebalance RAID.
The RAID Rebalance dialog box opens.
4. Click Stop Rebalancing. After rebalance stops, a confirmation dialog box opens.
5. Click OK.
Schedule a RAID Rebalance
Schedule a RAID rebalance to rebuild the data on all of the disks at a later date.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of
Unisphere Central.
2.
From the
STORAGE menu, click Disks.
The Disks view is displayed.
3. Click Rebalance RAID.
The RAID Rebalance dialog box opens. If a RAID rebalance is needed, the dialog box shows RAID rebalance options. If a
RAID rebalance is needed, the dialog box shows RAID rebalance options.
4. Select Schedule RAID rebalance.
5. Select a date and time.
Storage Center Maintenance
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