Disk Device Decommissioning; Decommissioning Luns - Brocade Communications Systems Brocade BladeSystem 4/24 User Manual

Disk device decommissioning

A disk device needs to be decommissioned when any of the following occur:
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In all cases, all data on the disk media must be rendered inaccessible. Device decommissioning
deletes all information that could be used to recover the data.
When a device decommission operation fails on the encryption group leader for any reason, the
crypto configuration remains uncommitted until a user-initiated commit or a subsequent device
decommission operation issued on the encryption group leader completes successfully. Device
decommission operations should always be issued from a committed configuration. If not, the
operation will fail with the error message An outstanding transaction is pending in Switch/EG. IF
this happens, you can resolve the problems by committing the configuration from the encryption
group leader.
Provided that the crypto configuration is not left uncommitted because of any crypto configuration
changes or a failed device decommission operation issued on a encryption group leader node, this
error message will not be seen for any device decommission operation issued serially on an
encryption group member node. If more than one device decommission operation is tried in an
encryption group from member nodes simultaneously, then this error message is transient and will
go away after device decommission operation is complete. If the device decommissioning
operation fails, retry the operation after some time has passed.

Decommissioning LUNs

Use the following procedure to decommission a LUN.
1. Select Configure > Encryption from the menu bar.
2. Select the encryption group, switch, or encryption engine containing the storage device or
3. Select Encryption Targets.
4. Select a Target storage device from the list, and click LUNs.
5. Select the LUNs associated with the device, and click the Decommission button.
6. Click Yes to proceed with decommissioning.
7.
DCFM Enterprise User Manual
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The storage lease expires for an array, and devices must be returned or exchanged.
Storage is reprovisioned for movement between departments.
An array or device is removed from service.
The Encryption Center dialog box displays.
devices to be decommissioned.
The Encryption Targets dialog box displays.
The Encryption Target LUNs dialog box displays.
A Warning message displays.
If a re-key operation is currently in progress on a selected LUN, a message is displayed that
gives you a choice of doing a Forced Decommission, or to Cancel and try later after the re-key
operation is complete.
To check on the progress of the decommissioning operation, click Refresh. When
decommissioning is complete, the LUNs are removed from the Encryption Target LUNs dialog
box.
Disk device decommissioning
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