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
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Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 1 Troubleshooting Overview
Troubleshooting Basics
•
View traffic statistics—In Device Manager, click the
Device
tab, select one or more ports, right-click
and choose
Monitoring
from the pop-up menu.
Fabric Manager and Device Manager also provide the following tools to proactively monitor your fabric:
•
ISL performance—In Fabric Manager, click the
ISL Performance
icon.
•
Network monitoring—In Device Manager, click the
Summary
tab.
•
Performance monitoring—In Fabric Manager, choose
Performance > Start Collection
.
Common CLI Commands
Issue the following commands and examine the outputs:
•
show module
•
show version
•
show running-config
•
show logging log
•
show interfaces brief
•
show fcns
•
show flogi
•
show hardware internal errors
•
show zoneset active
•
show accounting log
Note
Use the
show running interface
CLI command to view the interface configuration in Cisco SAN-OS
Release 3.0(1) or later. The interface configuration as seen in the
show running-config
CLI command
is no longer consolidated.
Note
To issue commands with the
internal
keyword, you must have an account that is a member of the
network-admin group.
Verifying Basic Connectivity
Answer the following questions to verify basic connectivity between your end devices:
•
Are you using the correct fiber (SM or MM)?
•
Did you check for a broken fiber?
•
Is the Fibre Channel port LED on the connected module green, and do the LEDs on any host bus
adapter (HBA)/storage subsystem ports indicate normal functionality?
•
Is there a LUN masking policy applied on the storage subsystem? If yes, is the server allowed to see
the LUNs exported by the storage array?
•
Is there a LUN masking policy configured on the host? Did you enable the server to see all the LUNs
it can access?
•
If LUN masking software is used, is the host’s pWWN listed in the LUN masking database?
