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

• Capacity:ExternalLU'scapacity.
• Status: External LU's status. Possible values: Normal, Unknown, Blockade, Warning,and
Format. Warning indicates that some alternate paths are blocked. Format indicates the
external LU is currently being formatted.
• View all LUs
Displays information about all external LUs in the LDEV list.
• View all Volumes
When the external LU is part of a LUSE volume, displays all LDEVs that make up the LUSE volume in
the LDEV list. However, LDEVs in other external LUs are not displayed, even though those LDEVs might
be part of the LUSE volume. To check all LDEVs configuring a LUSE volume, use the Volume Detail
command (Displaying configuration information for external LUs (Volume Detail)).
• Previous and Next buttons
If you select multiple external LUs in the Device list in the LU Operation pane, click Previous to change
the LDEV list to the external LU appearing just above the currently displayed LU. Click Next to change
the LDEV list to the external LU appearing just below the currently displayed LU.
• OK button
Closes the LDEV Information window, and returns to the LU Operation pane. Contents specified in the
LDEV Information window appear in blue italics in the Device list, and settings appear in the Preset list.
• Cancel button
Cancels all setting operations, closes the LDEV Information window, and returns to the LU Operation
pane.
Restoring external LUs (Restore)
Use the Restore command to restore the status of external LUs.
When errors occur in all paths between the local array and external array, the local array changes the
status of the external LU to Blockade.Inthiscase,seeTroubleshooting External Storage XP and restore
the path t
o the external array according to the troubleshooting instructions. Then execute the Check Paths
&Restore
Vol. command to make the external LU in Blockade status usable. If the external LU's status
remains Blockade, even though you restored the path to the external array and executed the Check Paths
&RestoreVol.command, execute the Restore command from the LDEV Information window.
NOTE:
If paths between the local array and external array are not restored, the external LU cannot be restored
to a usab
le status, even though you execute the Restore command.
NOTE:
If you set a mainframe-system emulation type (such as 3390-3) when you mapped the external LU, and
you restore the mapped LU without formatting the LU or performing the Write to Control Blocks operation,
datainthevolumecannotbereadcorrectly.
1. Select the LU Operation tab. The LU Operation pane appears.
2. In the Device tree, select the external LU group number. Information about the external LU mapped
as an internal LDEV appears in the Device list.
3. In the Device list, right-click the external LU you want to restore, and select LDEV Information.The
LDEV Information window appears. The LDEV list displays information about the external LU selected
in the Device list on the LU Operation pane.
4. Select View all LUs.
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