Use the Change Mapping option to make these changes:
Change the assigned for a logical drive.
Change the or that is associated with the logical drive.
Keep these guidelines in mind before you make a change to the .
You must clear any on the logical drive before the LUN mapping change is allowed.
Many hosts can have 256 LUNs mapped per , but the number varies depending on the operating system. Refer to the initial setup guide for your hardware for more information
about the number of supported LUNs.
If you change the assignment for a host group or host that only has one mapping, the host group or host will move back to
the and inherit any default mappings.
If you want to change the last mapping of a host group that also has an associated host with specific mappings, you must delete
or move the host mappings first.
In the Defined Mappings pane, select a single logical drive, and select Mappings >> Change >> Mapping.
Change the mapping by choosing one of these actions:
Select a host group or host from the Host group or host list. Go to step 5 to continue the procedure.The list shows the Default Group, followed by an alphabetical list of all defined host group names
or host names. Host group names are preceded by the text Host Group. Host names are preceded by the text Host. The list shows the current host group or the host associated with the selected logical drive.
Select a LUN from the Logical unit number (LUN) list.The list shows only the currently available LUNs that are associated with the selected logical drive.
To save the mapping and to close the dialog, click OK.
Stop any host applications associated with this logical drive, and unmount the logical drive, if applicable, from your operating
system.
In the Change Mapping window, click Yes to confirm the changes.
The mapping is checked for validity and is saved. The Defined Mappings pane is updated to reflect the new mapping. The Topology
pane is also updated to reflect any movement of host groups or hosts from under the Default Group. This movement occurs if
the mapping was changed to a host group or host that did not previously have any specific mappings.
If a password is set on the storage subsystem, the Enter Password dialog appears. Did the Enter Password dialog appear?
Yes – Type the current password to the storage subsystem, and click OK.
Run the or a similar utility on the host, and remount the logical drive if required.
Note:
If you must change the mapping for a , keep in mind that any hosts that are mapped to the secondary logical drive are unable to access the secondary logical drive
until it is promoted to a .