HP StorageWorks External Storage XP user guide (December 2005)

External Storage XP user guide 29
Uninstalling External Storage XP
To uninstall External Storage XP, cancel any existing Flex Copy copy pairs, and delete any external LU
mappings using the following procedure:
1. Log in to Command View XP or XP Remote Web Console. For instructions, see the HP StorageWorks
Command View XP User Guide for XP Disk Arrays or the HP StorageWorks XP Remote Web Console
User Guide for XP12000/XP10000.
2. Ensure that you are in Modify mode (for details, see the HP StorageWorks Command View XP User
Guide for XP Disk Arrays or the HP StorageWorks XP Remote Web Console User Guide for
XP12000/XP10000.
3. Cancel any existing Flex Copy pairs (for instructions, see the HP StorageWorks Flex Copy XP User
Guide.
4. Delete any external LU mapping (for instructions, see ”Deleting external LU mappings (Delete LU)” on
page 70).
5. Use the Command View XP or XP Remote Web Console Licensing module to remove the Flex Copy XP
license key.
6. For XP10000/XP12000, use the Command View XP or XP Remote Web Console Licensing module to
remove the External Storage XP license key.
Preparations for External Storage XP settings
Before using External Storage XP, collect information necessary for defining its settings. You must define the
following:
• XP10000/XP12000 ports that can be set to an External designation (”External port attributes” on
page 29)
• External disk arrays and the LUs to be mapped to the internal XP LDEVs (”Mapping external LU
information” on page 29)
• External LU groups (”Using external LU groups” on page 30)
• Configuration of external LU attributes (”External LU attributes set by mapping” on page 30)
• Alternate paths (”Alternate paths” on page 12)
External port attributes
The local disk array ports used for External Storage XP must be set to a designation of External. When the
external disk array is connected to the port of the local disk array via Fibre Channel, you can view
information about the external disk array from Command View XP or XP Remote Web Console on the
XP10000/XP12000. The external disk array can be connected only to ports designated as External.
To set the port attribute to External, release any existing paths currently configured for the port. (If any
paths are still set to a port, its attribute cannot be changed to External.) Before starting External Storage XP
operations, you must know which ports you can change to External.
NOTE: Ports with attributes set for remote copy software (such as RCU Target or Initiator) or other features
cannot be used as external ports for External Storage XP. If the port attribute is set to something other than
External, change its attribute to External. Flex Copy XP and External Storage XP can share an
XP10000/XP12000 port with an attribute of External.
For instructions on setting attributes, see ”Setting port attributes on the local disk arrays” on page 44.
Mapping external LU information
When connecting an external disk array to a port with an External designation, LUs in the external disk
array can be mapped as LDEVs in the local disk array. Verify which LUs in which external disk array may
be mapped as internal XP LDEVs.
You can map only one external LU to a given internal LDEV and map up to 1,024 external LUs per local
disk array port.