Cisco Nexus 5000 Series Switch CLI Software Configuration Guide, NX-OS 4.0(1a)N1 (OL-16597-01, January 2009)

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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 39 Distributing Device Alias Services
Device Alias Databases
Fabric Lock Override
You can use locking operations (clear, commit, abort) only when device alias distribution is enabled. If
you have performed a device alias task and have forgotten to release the lock by either committing or
discarding the changes, an administrator can release the lock from any switch in the fabric. If the
administrator performs this task, your changes to the pending database are discarded and the fabric lock
is released.
Tip The changes are only available in the volatile directory and may be discarded if the switch is restarted.
To use administrative privileges and release a locked device alias session, use the clear device-alias
session command in EXEC mode.
switch# clear device-alias session
To display the status of the clear operation, use the show device-alias status command.
switch# show device-alias status
Fabric Distribution: Enabled
Database:- Device Aliases 24
Status of the last CFS operation issued from this switch:
==========================================================
Operation: Clear Session
<--------------------Lock released by administrator
Status: Success <---------------------------------Successful status of the operation
Disabling and Enabling Device Alias Distribution
To disable or enable the device alias distribution, perform this task:
To display the status of device alias distribution, use the show device-alias status command. The
following example shows the device alias display when distribution is enabled:
switch# show device-alias status
Fabric Distribution: Enabled
<-------------------------------Distribution is enabled
Database:-Device Aliases 24
Locked By:-User “Test” SWWN 20:00:00:0c:cf:f4:02:83
<-Lock holder’s user name and switch ID
Pending Database:- Device Aliases 24
Status of the last CFS operation issued from this switch:
==========================================================
Operation: Enable Fabric Distribution
Status: Success
The following example shows the device alias display when distribution is disabled:
switch# show device-alias status
Fabric Distribution: Disabled
Database:- Device Aliases 24
Status of the last CFS operation issued from this switch:
Command Purpose
Step 1
switch# configuration terminal
Enters configuration mode.
Step 2
switch(config)# no device-alias
distribute
Disables the distribution.
switch(config)# device-alias distribute
Enables the distribution (default).