Brocade Network Advisor SAN User Manual v11.1x (53-1002167-01, May 2011)

554 Brocade Network Advisor SAN User Manual
53-1002167-01
Disk device decommissioning
18
Disk device decommissioning
A disk device needs to be decommissioned when any of the following occurs:
• 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 occurs, 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.
For more information, see the following topics:
• “Decommissioning LUNs” on page 554
• “Displaying and deleting decommissioned key IDs” on page 555
Decommissioning LUNs
Use the following procedure to decommission a LUN.
1. Select Configure > Encryption from the menu task bar.
The Encryption Center dialog box displays (Figure 153).
2. Select a group, switch, or engine from the Encryption Center Devices table that contains the
storage device to be configured, then select Group/Switch/Engine > Targets from the menu
task bar, or right-click a group, switch, or engine and select Targets.
NOTE
You can also select a group, switch, or engine from the Encryption Center Devices table, then
click the Targets icon.
The Encryption Targets dialog box displays (Figure 244).
3. Select a Target storage device from the list, then click LUNs.
The Encryption Target LUNs dialog box displays.
4. Select the LUNs associated with the device, then click Decommission.
A warning message displays.