Initial Troubleshooting Checklist; Common Troubleshooting Tools In Fabric Manager; Common Troubleshooting Commands In The Cli - Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual

Chapter 20 Troubleshooting IP Storage Services
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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Initial Troubleshooting Checklist

Begin troubleshooting IP storage services issues by checking the following issues:
Checklist
Verify licensing requirements. See the Cisco MDS 9000 Family Fabric Manager
Configuration Guide.
Verify that you are not configuring IPsec with IPv6.
Verify that auto-zone and CFS distribution are enabled for iSLB.
If an Ethernet PortChannel is configured between the IPS module and an Ethernet switch,
verify that any VRRP load balancing policy on the Ethernet switch is based on
source/destination IP address.
Verify that iSCSI is enabled on the required switches in the fabric, and for the required
Gigabit Ethernet interfaces. See the Cisco MDS 9000 Family Fabric Manager
Configuration Guide for details.

Common Troubleshooting Tools in Fabric Manager

Use the following Fabric Manager procedures to access IP interfaces, FCIP, and iSCSI:
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Common Troubleshooting Commands in the CLI

Use the following commands to troubleshoot IP interface, FCIP, and iSCSI issues:
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OL-9285-05
If there are more than 200 initiators in the running configuration, you must lower the number of
initiators to below 200 before disabling iSCSI.
If IVR and iSLB features are enabled in the same fabric, there should be at least one switch in the
fabric that has both of these features enabled. That switch must do any zoning related configuration
and activation (for normal zones, IVR zones, or iSLB zones) or there may be traffic disruption in
the fabric.
iSLB VRRP load balancing is based on the number of initiators and not on the number of sessions.
If you configure an initiator to see more targets than other initiators (resulting in more sessions on
this initiator), you should configure this initiator with a higher load metric.
iSLB should not be configured with Fabric Manager. Use Device Manager, which supports iSLB
with CFS distribution.
Choose Switches > Interfaces to access IP interfaces.
Choose ISLs > FCIP to access FCIP.
Choose End Devices > iSCSI to access iSCSI.
show ip
show ips arp
show ipv6 traffic
show ips ipv6
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
Initial Troubleshooting Checklist
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