Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual page 378

Initial Troubleshooting Checklist
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
show fcip
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show iscsi
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Use the following commands to troubleshoot iSLB issues:
show islb initiator [configured]—Displays all iSLB initiators that have logged into the switch. Use
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the configured keyword to see all iSLB initiators that have been configured.
show islb session—Verifies that all expected iSCSI sessions are up.
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show islb merge status—Displays the status of iSLB merge in the fabric. If the merge is in progress,
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it shows the identity of the two switches in the fabric. If the merge failed, it shows the reason for the
merge failure.
• show islb status—Displays whether iSLB CFS distribution is enabled in the fabric and if a CFS
session is active.
• show islb cfs-session status—Displays the result of the last CFS operation applied from the local
switch. If the operation failed, it shows the reason for the failure.
show islb vrrp [assignment | interface | summary | vr]—Shows the iSLB load balancing
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information with details on the load on each interface and the mapping of initiator to iSCSI interface
for every initiator in the fabric.
show logging log—Displays the logfile that captures system messages from all modules.
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Use the following commands as directed by your customer support representative to further troubleshoot
iSLB issues:
To issue commands with the internal keyword for troubleshooting purposes, you must have a user
Note
account that contains the network-admin role.
show ips internal event-history errors—Displays the errors encountered by the IPS manager.
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manager.
Use the following commands to troubleshoot the iSLB initiator and initiator target configuration:
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initiator.
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transitions.
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initiator-mapping | mib-index | nv-pss | scsi-lu-ext]—Displays the internal data structures for
iSLB objects.
Use the following commands to troubleshoot iSLB CFS:
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Use the following command to troubleshoot load balancing:
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data structures for the iSLB load balancing feature.
Use the following debug commands to gather more information for iSLB:
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
20-4
show ips internal event-history msgs—Displays the message transaction events history for the IPS
show ips internal info islb initiator node-name—Displays the internal data structure for the iSLB
show ips internal event-history iscsi initiator name—Displays the initiator state machine
show ips internal info islb zoneset—Displays the internal data structure for iSLB zone sets.
show ips internal info islb [fc-addr-list | fc-port | fc-port-wwn-tree |hashtable |
show ips internal info islb cfs—Displays internal data structures for iSLB CFS.
show ips internal event-history islb—Displays the iSLB CFS state machine transitions.
show ips internal info islb vrrp [assignment | interface | metric | session]—Displays the internal
Chapter 20 Troubleshooting IP Storage Services
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