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The HBAnyware Utility User Manual Page 29
Masking and Unmasking LUNs (Windows, Solaris LPFC and Solaris SFS)
LUN masking refers to whether or not a LUN is visible to the operating system. A LUN that has been
masked is not available and is not visible to the OS. You can use HBAnyware to mask or unmask LUNs
at the host level.
Figure 19: LUN Masking tab with LUN Masking Disabled
LUN Masking Conventions and Guidelines
LUN icons in the discovery-tree reflect the live mask state currently in use by the driver. Green LUN
icons indicate unmasked LUNs. Grey LUN icons indicate masked LUNs. Red text indicates that a LUN
mask has been changed, but not applied (saved).
LUN Masking Column Definitions
• LUN – The FC LUN number.
• On Reboot – The 'On Reboot' column shows the mask configuration currently saved to the
configuration file on disk (Solaris LPFC and Solaris SFS) or to the Registry (Windows).
Normally, for a specific LUN, the states reported in the 'On Reboot' and 'Current' column will be
identical. However, there may be times where these do not match. For example, the hbacmd
tool may be used to change only the 'Current' mask state for a LUN and not touch the 'On
Reboot' mask state contained in the configuration file.
• Current – The 'Current' column displays the live mask state currently in use by the driver. When
you first see the LUN Masking tab, the mask states displayed in the 'Current' column should be
identical to the mask states for the corresponding LUNs in the discovery-tree.
Note: In Solaris systems, the Emulex LPFC drivers support both a target level and HBA
level LUN unmasking override feature. If either of these driver-specific overrides are
enabled, the HBAnyware utility will not permit you to configure LUN masking. In this
case you must change the LUN masking level to the correct level from the LUN
masking tab before you can mask or unmask LUNs (see Figure 19).