Cisco Cisco Nexus 5010 Switch Guía Para Resolver Problemas
vms
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vpc
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When you configure an application that uses the CFS infrastructure, that feature starts a CFS session and locks
the fabric. When a fabric is locked, the Nexus software does not allow any configuration changes from a
switch, other than the switch that holds the lock. The Nexus software also issues an error message that states
"Operation failed. Fabric is already locked".
the fabric. When a fabric is locked, the Nexus software does not allow any configuration changes from a
switch, other than the switch that holds the lock. The Nexus software also issues an error message that states
"Operation failed. Fabric is already locked".
If you start a CFS session that requires a fabric lock but forget to end the session, an administrator can clear
the session. If you lock a fabric at any time, your user name is remembered across restarts and switchovers. If
another user (on the same machine) tries to perform configuration tasks, the attempts of that user are rejected
and a "session currently owned by a different user" error message appears.
the session. If you lock a fabric at any time, your user name is remembered across restarts and switchovers. If
another user (on the same machine) tries to perform configuration tasks, the attempts of that user are rejected
and a "session currently owned by a different user" error message appears.
Problem
A user is unable to make any configuration related change for the corresponding application, for which a CFS
lock is stuck or is unable to perform an In−Service Software Upgrade (ISSU) if the CFS is locked for
session−mgr.
lock is stuck or is unable to perform an In−Service Software Upgrade (ISSU) if the CFS is locked for
session−mgr.
This list shows some common error messages caused by a CFS lock:
Operation failed. Fabric is already locked
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Session currently owned by a different user
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Service "cfs" returned error: Operation failed. Fabric is already locked (0x40B30029)
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Solution
There are two methods you can use in order to clear a CFS lock:
Enter the clear <application> session command.
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Identify the application SAP−ID and unlock the fabric for the application with the hidden command
cfs internal unlock <sap−id>. Sap−ID is the uniquely assigned numerical ID for each process.
cfs internal unlock <sap−id>. Sap−ID is the uniquely assigned numerical ID for each process.
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This procedure includes both methods:
Validate if CFS is locked and identify the affected application.
This example output shows that CFS is currently locked for Virtual Port Channel (VPC):
cisco−N5k# show cfs lock
Application: vpc
Scope : Physical−eth
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
Switch WWN IP Address User Name User Type
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
20:00:00:2a:6a:6d:03:c0 0.0.0.0 CLI/SNMP v3
Total number of entries = 1
Cisco−N5k# show cfs lock name vpc
Scope : Physical−eth
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
Switch WWN IP Address User Name User Type
1.