Check paths & restore vol.), Checking the connection, Checking the connection status – HP StorageWorks XP Remote Web Console Software User Manual
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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.
The procedures of resuming the external volume are described as follows.
•
Restoring all external LUs in an external array (Check Paths & Restore Vol.)
•
Restoring external LUs individually (Check Paths & Restore Vol.)
Restoring all external LUs in an external array (Check Paths & Restore Vol.)
1.
In the LU Operation pane, select External Devices in the Device tree. Physically connected
external arrays appear in the Device list.
2.
In the Device list, right-click the external array you want to restore the connection to the local
array, and select Check Paths & Restore Vol. The selected external array appears in blue italics
in the LU list and Device list. It also appears in the Preset list.
To check setting details, right-click the setting in the Preset list, and select Detail. To cancel
settings, right-click the setting in the Preset list, and select Delete.
3.
Click Apply. A confirmation message appears.
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