Dell Compellent Series 40 - Manual (Page 130)

122 Storage Center 5.5 System Manager User Guide
Disks
Rebalancing RAID
RAID Rebalancing restripes data to optimize the use of disk space. System Manager
distributes data as evenly as possible across disks in a disk folder. Operations such as
adding or removing disks or modifying redundancy levels can cause data to be unevenly
distributed across disks. The RAID Rebalance process redistributes data. The process also
can be used to move data off disks that were moved to another disk folder.

To view RAID rebalance status
1 From the Storage Management menu select Disk > Rebalance RAID. The RAID
Rebalance window appears.
Figure 95. RAID Rebalance Status
2 To rebalance now, click Rebalance Now. Otherwise, click Schedule Rebalance to
rebalance later.
3 While Rebalance is in progress, the RAID Rebalance wizard displays the rebalance
progress.
4 Click Close if you like, and the System Manager continues to rebalance data in the
background. Reopen the RAID Rebalance window to monitor rebalance progress by
opening the Storage Management menu and selecting Disk > Rebalance RAID. To
stop Rebalancing, in the RAID Rebalance window, click Stop Rebalancing.
RAID Rebalance Status
The Monitor RAID Rebalance window displays information about the current status of
RAID Rebalance. The options available on the Monitor RAID Rebalance window change
depending upon the RAID Rebalance state.