HP StorageWorks External Storage XP user guide (T1706-96006, June 2006)
Table Of Contents
- HP StorageWorks External Storage XP user guide
- Contents
- About this guide
- 1 Overview of connecting external arrays
- 2 Preparing for External Storage XP operations
- System requirements
- External Storage XP requirements
- Installing External Storage XP
- Preparing for External Storage XP settings
- Powering arrays on or off
- Using mapped external LUs from the host connected to the local array
- Uninstalling External Storage XP
- Limitations on External Storage XP operations
- Figure 11 Example of external LU with 2 TB or less
- Figure 12 External LU capacity is larger than the specified emulation type’s basic capacity (OPEN-3 example)
- Figure 13 External LU capacity is smaller than the specified emulation type’s basic capacity
- Table 4 When external LU’s emulation type is OPEN
- Table 5 When external LU’s emulation type is for mainframes
- Combining External Storage XP with other HP StorageWorks products
- 3 Managing cache with external storage
- Guidelines for using cache with external storage
- Determining, setting, or changing the external LU cache mode
- Partitioning cache for external storage
- Determining the number and size of needed partitions
- Creating Cache partitions
- Changing storage system modes
- 4 External Storage XP panes
- 5 Configuring external LUs
- Overview of configuring external LUs
- Setting an external array’s port
- Setting a local array’s port attributes
- Mapping external LUs (Add LU)
- Setting alternate paths for external LUs
- Adding alternate paths by selecting multiple external LUs (Add Paths)
- Deleting alternate paths by selecting multiple external LUs (Delete Paths)
- Checking an external LU’s status (LDEV Information)
- Disconnecting external arrays or LUs
- Checking the connection status and resuming external LU operations (Check Paths & Restore Vol.)
- Restoring external LUs (LDEV Restore)
- Stopping the use of paths to an external LU by specifying an external array’s WWN (Disconnect Paths)
- Restoring paths to an external LU by specifying an external array’s WWN (Check Paths)
- Changing an external array’s port setting
- Stopping the use of paths to an external LU by specifying a local array’s port (Disconnect Paths)
- Restoring paths to an external LU by specifying a local array’s port (Check Paths)
- Deleting external LU mappings (Delete LU)
- 6 Troubleshooting NAS Blade systems that include external arrays
- 7 Remote command devices
- 8 Troubleshooting External Storage XP
- A Notes on connecting external arrays
- Connecting Thunder 9500V subsystems
- System parameters for connecting Thunder 9500V subsystems
- Relationship between serial numbers in the Device list on the LU Operation pane and Thunder 9500V subsystem models
- Relationship between the WWN of the port on the Thunder 9500V subsystem and the controller
- Path status and examples of recovery procedures (Thunder 9500V subsystems)
- Connecting TagmaStore AMS and TagmaStore WMS subsystems
- System parameters for connecting TagmaStore AMS and TagmaStore WMS subsystems
- Relationship between serial numbers in the Device list on the LU Operation pane and TagmaStore AMS and TagmaStore WMS subsystem models
- Relationship between the WWN of the port on the TagmaStore AMS or TagmaStore WMS subsystem and the controller
- Path status and examples of recovery procedures (TagmaStore AMS and TagmaStore WMS subsystems)
- Connecting XP12000/XP10000 Disk Arrays
- Connecting XP1024/XP128 Disk Arrays
- Connecting XP512/XP48 Disk Arrays
- Connecting HP 200 Storage Virtualization System as external storage
- Connecting EVA arrays
- Connecting Thunder 9500V subsystems
- B Required volume capacity for emulation types
- C Adjusting volume capacity for copy pair setting
- D Using an XP12000/XP10000/SVS200 with an EVA3000/5000 external storage
- E Configuring MSA1000/1500 as external arrays
- Index

External Storage XP user guide 77
Local array ports. You can set alternate paths for the selected port. One of the following icons appears
for each port:
• Selected Paths
External array port for which you can set the alternate path connecting to the local array port selected
in the Port list. By default, all ports that can be set as alternate paths appear. The WWN identifying
the external array port appears. If the primary path and as many alternate paths as you set in
Alternate Path in the Add LU pane cannot be set with the paths selected in Selected Paths, an error
occurs and appears in the Preset list.
• Unselected Paths
Ports excluded from being candidates for the ports setting the primary and alternate paths appear
among the external array ports that can be set as the primary and alternate paths. WWNs identifying
the external array ports appear in the list.
• Set button
If you select the port (external array WWN) you want to set as the candidate for the primary and
alternate paths in Unselected Paths, and click Set, the selected WWN moves to Selected Paths.
• Release button
If you select the port (external array WWN) you want to exclude from the list of candidates for the
primary and alternate paths in Selected Paths, and click Release, the selected WWN moves to
Unselected Paths.
• OK button
Saves settings in the Select Paths pane, and closes the pane.
• Cancel button
Cancels all settings in the Select Paths pane, and closes the pane.
To map an external LU as an internal LDEV individually:
1. Select the LU Operation tab. The LU Operation pane appears.
2. In the Device tree, select Discovery. WWNs appear in the tree indicating external array ports that can
be connected.
3. In the Device tree, select the port (WWN) you want to connect from the WWNs listed in the Device.
External LUs that can be connected from the external array port (WWN) selected in the tree appear in
the Device list.
4. Right-click the external LU you want to map as an internal LDEV in the Device list, and select Add LU.
The Add LU window appears.
5. Select the internal LDEV that is mapped to the external LU selected in the Device list on the Add LU
window. Enter the following items in the Add LU window:
a. In the ExG box, select an external LU group number.
b. From the Emulation Type list, select an emulation type.
c. In the LDEV box, select the number of volumes to create.
d. Select the IO Suppression
mode.
e. Select the Cache Mode.
f. In the Alternate Path box, select the number of alternate paths that are automatically set.
g. In the CLPR box, select the CLPR to be used. To limit the CU selection range, select the Limited check
box.
h. In the CU# list, select the CU number.
Icon Description
Port in Standard mode.
Port in Initiator/External MIX mode