Administrator Guide

The Disks view is displayed.
5. In the right pane, select a disk and click Toggle Indicator.
The Toggle Indicator dialog box opens.
6. Click OK.
Release a Disk
Release a disk before removing it from an enclosure. The disk is fully released after performing a RAID rebalance.
About this task
NOTE: Do not release disks from a disk folder unless the remaining disks have enough free space for the re-striped data.
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 SYSTEM menu, click Hardware.
The Hardware view is displayed.
3. Click the System tab.
4. In the System tab navigation pane, expand the Storage Center and select Disks.
The Disks view is displayed.
5. In the disks table, select a disk and click Release Disk.
The Release Disks dialog box opens.
6. Schedule a RAID rebalance.
• To start a RAID rebalance after releasing the disk, select Perform RAID rebalance immediately.
• To schedule a RAID rebalance, select Schedule RAID rebalance then select a date and time.
7. To skip the RAID rebalance, select I will start RAID rebalance later.
8. Click OK.
Cancel Releasing a Disk
After releasing a disk, the data remains on the disk until the RAID rebalance is complete. Cancel releasing a disk if the RAID rebalance has
not completed and the data is still on the disk. Canceling the release reassigns the disk to the disk folder to which it was previously
assigned.
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 SYSTEM menu, click Hardware.
The Hardware view is displayed.
3. Click the System tab.
4. In the System tab navigation pane, expand the Storage Center and select Disks.
The Disks view is displayed.
5. In the disks table, select a disk marked for release and click Cancel Release Disk.
The Cancel Release Disks dialog box opens.
6. Click OK.
Delete a Disk
Deleting a disk removes that disk object from Unisphere. Before deleting the disk object, you must release the disk, moving the data off
the disk.
Prerequisites
• The disk failed and it does not have any allocated blocks.
Storage Center Maintenance
153