Compaq Infortrend Manual De Usuario

A particular extended LUN map can be setup with an attribute of
"Read Only" in the event that certain hosts may need to read the
data on the media but must not be allowed to change it.  In the
degenerate case (range only includes a single ID), different hosts can
be mapped with completely different logical drives/logical
volumes/logical partitions even when they address the same
channel, target-ID, and LUN.

When completed with configuring LUN mask, press [ESC] to map a
logical unit to LUN.

Multiple filter entries can be created for a Host ID/LUN
combination, select the Host LUN again to enter the editing menu.

You may continue to add more entries, to delete or edit the existing
entries.