Releasing LUN reservation by host

The following explains how to release forcibly a LUN reservation by a host.

Prerequisites

• You must have the Storage Administrator (System Resource Management) role to perform this task.

 If you perform the releasing a LUN reservation by a host, the host which is connected to LDEV by LUN path is affected.

To release a LUN reservation by a host:

1. Perform one of the following to display the Ports / Host Groups / iSCSI Targets window.

For Command Suite:

• On the Resource tab, expand the Storage Systems tree. On the target storage system, click Port / Host Group.

For Storage Navigator:

• Expand the Storage Systems tree and select Ports / Hosts Groups / iSCSI Targets.

2. Select the port.

Host groups or iSCSI targets corresponding to the port appear.

3. Select the host group or iSCSI target.

Information about the selected host group (iSCSI target) appears on the window.

4. Select the LUNs tab.

Information about LU paths associated with the selected host group appears.

5. On the menu bar, click Actions, Ports/Hosts Groups > Fibre (or iSCSI) > View Host-Reserved LUNs. Or, select View Host-Reserved LUNs from the lower right of the window. The Host-Reserved LUNs window opens.

6. In the Host-Reserved LUNs window, select LUN to release the reservation by the host, then select Release Host-Reserved LUNs. The Release Host-Reserved LUNs window opens.

7. Confirm the settings and enter the task name in the Task Name box.

A task name can consist of up to 32 ASCII characters (letters, numerals, and symbols). Task names are case-sensitive. (date) - (task name) is input by default.

8. Click Apply in the Release Host-Reserved LUNs window.

If the Go to tasks window for status check box is selected, the Tasks window appears.