Emulex OneCommand Manager Application User Manual (P006979-01A Version 5.2, August 2011)

The OneCommand Manager User Manual Page 155
Figure 91: LUN Masking tab
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. Gray 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) or to the Registry (Windows). Normally, for a specific LUN, the
states reported in the 'On Reboot' and 'Current' column are identical. However, there can be
times where these do not match. For example, the hbacmd utility can 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 are
identical to the mask states for the corresponding LUNs in the discovery-tree.
To change the mask status of a LUN:
1. Select Host view.
2. From the discovery-tree, select the SCSI target whose LUN masking state you want to change.
A set of LUNs appears below the selected SCSI target.