HP 8/8 Fabric OS Encryption Administrator's Guide v6.4.0 (53-1001864-01, June - Page 93

Disk device decommissioning 2 Disk device decommissioning A disk device needs to be decommissioned when any of the following occur: • 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. 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. The Encryption Center dialog box displays. 2. Select the encryption group, switch, or encryption engine containing the storage device or devices to be decommissioned. 3. Select Encryption Targets. The Encryption Targets dialog box displays. 4. Select a Target storage device from the list, and click LUNs. The Encryption Target LUNs dialog box displays. 5. Select the LUNs associated with the device, and click the Decommission button. A Warning message displays. 6. Click Yes to proceed with decommissioning. 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. 7. 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. Fabric OS Encryption Administrator's Guide 75 53-1001864-01