Changing the Path Status

The procedure for changing the path status differs depending on the display format of the path information. Path information can be displayed in the following two formats:

„ Configuration-diagram format. This format uses a diagram to display the configuration of

the host, host bus adapters, paths, channel adapters, LUs, and storage system.

„ List format. This format displays path information in a list.

You can switch the display format for the path information by clicking the Configuration tab or the Path List tab.

4.2.6.1

Changing the Path Status from the Configuration Diagram

To change the path status when path information is displayed in configuration-diagram format:

1. Display the Path Management window. The Path List view of the Path Management window is displayed. (For details on displaying the Path Management window, see section 4.2.2.1.)

2. Click the Configuration tab.

The Configuration view is displayed in the view frame.

3. In the tree frame, select the storage system or the LU connected to the path whose status you want to change. If a storage system is selected, information on the paths that connect the host and the selected storage system is displayed as a diagram in the view frame. If an LU is selected, information on the paths that connect the host and the selected LU is displayed as a diagram in the view frame. Note that the paths to be displayed in the Configuration view can be restricted or expanded using the Type and

Status check boxes in the view frame. For details on the tree frame, see section 6.2.2.

For details on the Configuration view in the view frame, see section 6.2.3.

4. Select the path whose status you want to change. The line of the selected path will become thick. You can select a path by any of the following three actions:

– Click the path. The selected path will become the target of operations.

– Click the CHA button. All paths connected to the channel adapter that corresponds to the clicked CHA button will become the targets of operations.

– Click the button for the HBA port. The path connected to the HBA port that corresponds to the clicked HBA port will become the targets of operations.

4. If you want to change the status of the selected path to online, click the Online button. If you want to change the status to offline, click the Offline button. A dialog box confirming that you want to change the status is displayed.

5. Click the OK button. The status of the selected path changes, and the line indicating the path status changes also. For details on displaying the path, see section 6.2.3.

If you click the Online button without first selecting a path, in the Path List view all the paths whose statuses are not Online will change to Online. Also note that if no path is selected, the Offline button will be displayed as inactive, and will not function.

If you attempt to change the status of multiple paths but the status of one of those paths cannot be changed, the KAPL02022-W or KAPL02023-W message appears. To ignore the path whose status cannot be changed and to continue processing, click the OK button. To stop processing, click the Cancel button.

4.2.6.2

Changing the Path Status from the List Format

To change the path status when path information is displayed in list format:

1. Display the Path Management window. The Path List view of the Path Management window is displayed.

2. In the tree frame, select the host, storage system, or LU connected to the path whose status you want to change.

If a host is selected, information on all paths connected to the host is displayed in a list in the view frame. If a storage system is selected, information on the paths that connect the host and the selected storage system is displayed in a list in the view frame. If an LU is selected, information on the paths that connect the host and the selected LU is displayed in a list in the view frame. Note that the paths to be displayed in the Path List view can be restricted or expanded using the Type and Status check boxes in the view frame. For details on the tree frame, see section 6.2.2. For details on the Path List view in the view frame, see section 6.2.4.

3. Select the path whose status you want to change. To select paths on which you want to perform an operation, use any of the following methods:

– To select one line only, you can click the line that displays the information for the path you want to perform an operation on.

– To select a range of lines, you can click the top and the bottom lines of the desired range while pressing the Shift key.

– To select a range of lines, you can drag the mouse over the lines.

Note that some paths might remain unselected depending on the speed of your mouse drag.

– To select multiple lines, you can click desired lines while pressing the Ctrl key. To release selection of a path or paths, use either of the following methods:

– To release all selected lines, click an empty line.

– To release the selection of one line, click the line while pressing the Ctrl key. 4. If you want to change the status of the selected path to online, click the Online button.

If you want to change the status to offline, click the Offline button. A dialog box confirming that you want to change the status is displayed.

5. Click the OK button. The status of the selected path changes to online or offline. Also, the icons displayed in the Status column change to (Online status) or (Offline(C) status). In a cluster configuration, if a user uses the Path Management window or uses the dlnkmgr command's offline operation to perform offline operations during reserve processing, the offline processing waits until the reserve processing finishes. During this wait, the path status is Online(P) rather than Offline(C); however, the icon remains as . After the reserve processing finishes and the offline operations execute, the path status will switch to Offline(C); however, the icon will not automatically switch to . To display the most recent path status, click the Refresh button.

If you click the Online button without first selecting a line or if you select a line that has no information displayed, in the Path List view all the paths whose statuses are not

Online will change to online. Also note that if no path is selected, the Offline button

will be displayed as inactive, and will not function.

If you attempt to change the status of multiple paths but the status of one of those paths cannot be changed, the KAPL02022-W or the KAPL02023-W message appears. To ignore the path whose status cannot be changed and to continue processing, click the OK button. To stop processing, click the Cancel button.