HP StorageWorks External Storage XP user guide for the XP12000, XP10000, SVS200 (T1706-96009, October 2007)

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.Inthiscase,seeTroubleshooting External
Storage XP 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,clicktheRefreshbutton(
)onthe
Command View XP or XP 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
amappedLU.However,iftheexternalLUisnotreadytoberesumed,thestatusofthedisconnected
volume r
emains Blockade.
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.Tocancelsettings,
right-click the setting in the Preset list, and select Delete.
3. Click Apply.Aconfirmation message appears.
4. Click OK.
The path status in the Path Setting pane changes to Checking. When External Storage XP finishes
checking path status and the external array can be restored, the Status column changes to Normal.
If the external array cannot be restored, the status changes to Blockade.
11 2
Configuring external LUs