Paths & restore vol.) – HP StorageWorks XP Remote Web Console Software User Manual
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2.
In the Device list, right-click the external LU you want to disconnect from the local array, and
select Disconnect Volume. The selected external LU group number in the Device tree and the
selected external LU in the Device list appear in blue italics. It also appears in the Preset list.
To check details on the intended operation, right-click the row in the Preset list, and select Detail.
To cancel settings, right-click the row in the Preset list, and select Delete.
3.
Click Apply. A confirmation message appears.
4.
Click OK. The Ex-Dev.Status column in the Device list changes to Cache Destaging. When XP
External Storage finishes writing data from cache to the external LU, the Ex-Dev. Status column
changes to Disconnect.
If errors occur during disconnect operations, failed operations and error codes appear in the
Preset list. To check error messages, right-click the failed operation row, and select Detail.
CAUTION:
To access the external LU after executing the Disconnect Subsystem command, you must execute the
Check Paths & Restore Vol. command.
Checking the connection status and resuming external LU
operations (Check Paths & Restore Vol.)
When errors occur in the path between the local array and external array, and also in all alternate
paths, the local array changes the external LU's status to Blockade. In this case, see
and restore the path to the external array according to the troubleshooting
procedure. Execute the Check Paths & Restore Vol. command to make the external LU in Blockade
status usable.
When executing the Check Paths & Restore Vol. command for the disconnected external LU for which
mapping settings are preserved, the defined mapping setting and the external LU's current status are
compared and checked to see if the settings match the actual status. The path status and all other
mapping configuration definitions are checked. If the external LU can be resumed as a mapped volume
as a result of the checking processing, the volume status is set to be available for I/O operations.
Use the Check Paths & Restore Vol. command to resume using an external LU that has been
disconnected using the Disconnect Subsystem or Disconnect Volume command.
CAUTION:
After executing the Check Paths & Restore Vol. command, click the Refresh button (
) on the XP
Command View Advanced Edition Software or Remote Web Console main pane to update the
information, and check the current progress status.
NOTE:
If you execute the Check Paths & Restore Vol. command and the external LU is ready to be restored
as the mapped LU, the external LU is set to accept I/Os and you can resume using the external LU as
a mapped LU. However, if the external LU is not ready to be resumed, the status of the disconnected
volume remains Blockade.
Configuring external LUs
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