Lun Mapping (V2.X) - HP StorageWorks 9000 - Virtual Library System User Manual

2. Select the hosts to change.
3. Select Disable Hosts or Enable Hosts as appropriate.
The window refreshes and displays a message indicating the hosts were disabled or enabled
successfully. Note that the state now reflects the change.
To remove host WWPNs:
1. Open the Host Setup window.
2. Select the hosts to remove.
3. Select Remove Hosts.
The window refreshes and displays a message indicating the hosts were removed successfully.
The hosts no longer appear on the list.

LUN Mapping (v2.x)

By default all hosts on the SAN see the LUN numbers that have been assigned to the virtual devices
by the VLS firmware. You have the option of assigning a different LUN number to a virtual device by
host using the LUN mapping feature. For example, you can assign Library 2 the LUN number LUN0
for host1, and the other hosts will still see Library 2 as the LUN number assigned by the VLS firmware.
LUN mapping is by host and is used to allow host access to hosts that are LUN masked, and to present
only a subset of the VLS virtual devices to a host.
LUN mapping should only be used if the host requires LUN masking. For example, if host1 is LUN
masked so it cannot see all the virtual libraries and/or virtual tape drive on a FC host port, the LUN
numbers it can see may not include LUN0 and have no gaps in the LUN numbering as required by
the operating system. See
To perform LUN mapping:
1. Perform "LUN Masking
you want to perform LUN mapping.
2. Click the System tab.
3. Select a virtual library or tape drive in the navigation tree that you want to make visible (accessible)
to the host.
"Operating System LUN Requirements and
(v2.x)" on page 160 and select Mapping Enabled for the hosts for which
Restrictions" on page 159.
HP StorageWorks 167