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
30 Preparing for External Storage XP operations
area, use Volume Manager to format the mapped LU. For instructions, see the HP StorageWorks LUN
Configuration and Security Manager XP user guide for the XP12000/XP10000/SVS200.
To to step 4.
3. For mainframe-system emulation types (for example, 3390-XX), the status of the mapped LU is set to
Blockade, pending resizing and formatting. Use Volume Manager to format the volume. If you
mapped a volume for which the data area is already zero-formatted on the external array side, use
Volume Manager’s Write to Control Blocks operation to restore the volume. For instructions, see the
HP StorageWorks LUN Configuration and Security Manager XP user guide for the
XP12000/XP10000/SVS200.
4. Configure the path from the Target port to the mapped volume to perform host I/O operations. The
mapped LDEV is available for host I/O operations.
After the path is set, host I/O operations to the mapped LU are available.
Figure 9 Writing new data to mapped external LUs
Using existing data in mapped external LUs
Figure 10 shows an example of using existing data in a mapped external LU from the host connected to the
local array.
1. From the host connected to the external array, write data to the LU in the external array.
2. Use External Storage XP to map the LU in the external array containing data as an internal LDEV of the
local array.
When mapping the external LU, set the following attributes for the mapped LU:
• Emulation type: OPEN-V
• IO Suppression mode: Disable
For more information, see ”Mapping external LUs (Add LU)” on page 73.
CAUTION: You must set the emulation type to OPEN-V to read existing data in the mapped
external LU from the local array side. Other emulation modes require that the data space be
resized, which in effect destroys existing data. Once an external LU is mapped to the local array for
use by External Storage XP, direct host access to that LU is no longer allowed. Also set the emulation
type to OPEN-V when the VMA of LUN Security XP Extension is set for the external LU on the
external array side.
3. Configure the path from the Target port to the mapped LU to perform host I/O operations.