HP XP P9500 Storage - Manual (Page 46)

Take the following steps to delete the external path B and add the external path D.
6. Execute the Disconnect External Paths command on the external path B.
7. Disconnect the cable that the external path B uses, and connect the cable that the external
path D uses.
8. Cancel the configuration of the external path B, and add the external path D.
9. Click Apply to apply the settings of the external paths B and D.
10. Make sure the status of the external path D is Normal.
Checking the external volume details
You can check the details on the mapped external volume and the details on the mapping path
using the View External LUN Properties window.
To check the external volume details:
1. Click External Storage in the Storage Systems tree.
The list of available external storage systems appear in the tree.
2. In the tree, select an external storage system.
The path groups corresponding to the external storage system appear.
3. Select a path group.
4. Select the Mapped Volumes tab.
5. Select an external volume.
6. On the menu bar, click Actions, External Storage, and then View External LUN Properties.
The External LUN Properties window opens.
Turning on or off the storage system
This section describes the procedures to turn on or off the power supply of the local storage system
and the external storage system after the External Storage operation has been started.
This section uses Business Copy as an example:
When you turn on or off the power supply of only the external storage system, you need to execute
the
“Commands for turning on or off only the external storage system” (page 46) .
CAUTION:
•
When you want to turn off both the local storage system and the external storage system, you
first need turn off the local storage system, and then turn off the external storage system.
•
When you want to turn on both the local storage system and the external storage system, you
first need to turn on the external storage system, and then turn on the local storage system.
Commands for turning on or off only the external storage system
When you turn on or off the power supply of only the external storage system while the power
supply of the local storage system remains on, you need to execute the following External Storage
commands:
Disconnect External Storage Systems command
The Disconnect External Storage Systems command should be executed when the external storage
system is maintained or stopped on purpose. When the Disconnect External Storage Systems
command is executed, the acceptance of the host I/O to the external volume that is mapped as
the internal virtual volume is stopped. Then all the data that should belong to the external volume
is written to the external volume from the cache memory of the local storage system (all the data
is destaged).
46 Performing External Storage operations