Fabric Lock Override; Database Merge Guidelines; Displaying Configured Fctimer Values - Cisco MDS 9000 Series Configuration Manual

Advanced Features and Concepts
Discards the fctimer configuration changes in the pending database and releases the fabric lock.

Fabric Lock Override

If you have performed a fctimer fabric 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 are subject to being discarded if the switch is
restarted.
To use administrative privileges and release a locked fctimer session, use the clear fctimer session command.
switch# clear fctimer session

Database Merge Guidelines

For information about CFS merge support, refer to the Cisco MDS 9000 Family NX-OS System Management
Configuration Guide .
When merging two fabrics, follow these guidelines:
• Be aware of the following merge conditions:
• Do not configure global timer values when distribution is enabled.
Note
The number of pending fctimer configuration operations cannot be more than 15. At that point, you must
commit or abort the pending configurations before performing any more operations.

Displaying Configured fctimer Values

Use the show fctimer command to display the configured fctimer values (see the following examples).
Displays Configured Global TOVs
switch# show fctimer
F_S_TOV
• The merge protocol is not implemented for distribution of the fctimer values—you must manually
merge the fctimer values when a fabric is merged.The per-VSAN fctimer configuration is distributed
in the physical fabric.
• The fctimer configuration is only applied to those switches containing the VSAN with a modified
fctimer value.
• The global fctimer values are not distributed.
D_S_TOV E_D_TOV R_A_TOV
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
Fabric Lock Override
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