Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 107

Chapter 5 Troubleshooting SAN Switching Issues
S e n d d o c u m e n t c o m m e n t s t o n e x u s 5 k - d o c f e e d b a c k @ c i s c o . c o m .
If a new switch is added to the fabric and the merge status for any application shows In Progress for a
prolonged period of time, then there may be an active session for that application in a switch. Check the
lock status for that application on all the switches by using the show cfs lock command. If any locks
exist, the merge does not proceed. Commit the changes or clear the session lock so that the merge
proceeds.
Merge failures must be analyzed correctly. Exercise caution when choosing a switch for blank commit.
Note
Small configurations may wipe out the large configurations.
Recovering from a Merge Failure with the CLI
To recover from a merge failure using the CLI, perform the following steps:
To identify a switch that shows a merge failure, enter the show cfs merge status name
Step 1
<application-name> command.
Example:
switch(config)# show cfs merge status name ntp
Physical-fc-ip
Local Fabric
--------------------------------------------------------------------------------
Switch WWN
--------------------------------------------------------------------------------
20:00:00:0d:ec:da:6e:00 172.25.183.124
Total number of switches = 1
switch(config)# show cfs merge status name ntp
Physical-fc-ip
Local Fabric
--------------------------------------------------------------------------------
Switch WWN
--------------------------------------------------------------------------------
20:00:00:0d:ec:50:09:00 172.25.183.42
20:00:00:0d:ec:da:6e:00 172.25.183.124
Total number of switches = 2
For a more detailed description of the merge failure, enter the show cfs internal session-history name
Step 2
<application name> detail command.
Example:
switch(config)# show cfs internal session-history name ntp
--------------------------------------------------------------------------------
Time Stamp
User Name
--------------------------------------------------------------------------------
Thu Aug
admin
Thu Aug
admin
Thu Aug
OL-25300-01
Merge Status: Success [ Thu Aug
IP Address
switch
Merge Status: Success [ Thu Aug
IP Address
MDS-9134
Source WWN
Session ID
5 11:45:19 2010 20:00:00:0d:ec:da:6e:00
34684
5 11:45:19 2010 20:00:00:0d:ec:da:6e:00
34689
5 11:45:20 2010 20:00:00:0d:ec:da:6e:00
5 11:47:58 2010 ]
[Merge Master]
5 11:43:39 2010 ]
[Merge Master]
Event
LOCK_ACQUIRED
COMMIT[2]
LOCK_RELEASED
Cisco Nexus 5000 Series Troubleshooting Guide
Cisco Fabric Services
5-35