Cisco MDS-9124 Troubleshooting Guide - Page 165

Chapter 7 Troubleshooting Cisco Fabric Services Merge Failure Troubleshooting Send documentation comments to [email protected] 103 20:00:00:0e:d7:00:3c:9e 10.76.100.52 [Local] 221 20:00:00:05:30:00:6b:9e 10.76.100.167 11 20:00:00:0d:ec:06:55:c0 10.76.100.205 Total number of entries = 3 Step 3 To determine if all the switches in the fabric constitute one CFS fabric, or a multitude of partitioned CFS fabrics, issue the show cfs merge status name application-name command and the show cfs peers name application-name command and compare the outputs. If the outputs contain the same list of switches, the entire set of switches constitutes one CFS fabric. When this is the case the merge status should always show success at all switches. Example command outputs follow: Switch# show cfs merge status name dpvm Physical Merge Status: Success [ Sat Nov 20 11:59:36 2004 ] Local Fabric Switch WWN IP Address 20:00:00:05:30:00:4a:de 10.76.100.51 [Merge Master] 20:00:00:0d:ec:0c:f1:40 10.76.100.204 Switch# show cfs peers name dpvm Scope : Physical Switch WWN IP Address 20:00:00:0d:ec:0c:f1:40 10.76.100.204 [Local] 20:00:00:05:30:00:4a:de 10.76.100.51 Total number of entries = 2 If the list of switches in the show cfs merge status name command output is shorter than that of the show cfs peers name command output, the fabric is partitioned into multiple CFS fabrics and the merge status may show that the merge has failed, is pending, or is waiting. Merge Failure Troubleshooting During a merge, the merge managers in the merging fabrics exchange their configuration databases with each other. The application on one of them merges the information, decides if the merge is successful, and informs all switches in the combined fabric of the status of the merge. When a merge is successful, the merged database is distributed to all switches in the combined fabric and the entire new fabric remains in a consistent state. A merge failure indicates that the merged fabrics contain inconsistent data that could not be merged. 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 some switch. Check the lock status for that application on all the switches using the show cfs lock CLI command. If there are any locks, then the merge will not proceed. Commit the changes or clear the session lock so that the merge can proceed. OL-9285-05 Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x 7-5