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Cisco MDS 9000 Family Troubleshooting Guide
OL-5183-02, Cisco MDS SAN-OS Release 1.3
Chapter 7 Troubleshooting Fabric Manager Issues
Two Switches Show on my Map, But I Only Have One Switch
Two Switches Show on my Map, But I Only Have One Switch
If two switches show on your map, but you only have one switch, it may be that you have two switches
in a non-contiguous VSAN have the same Domain ID. Fabric Manager uses <vsanId><domainId> to
look up a switch, and this can cause the fabric discovery to assign links incorrectly between these errant
switches.
The workaround is to verify that all switches use unique domain IDs within the same VSAN in a
physically connected fabric. (The fabric config checker will do this task.)
There is a Red Line Through the Switch. What’s Wrong?
If a red line shows through your switch, this means Fabric Manger sees something wrong with the
switch. Check the Switch->Inventory report. A module, fan, or power supply has failed or is offline and
plugged in.
There is a Dotted Orange Line Through the Switch. What’s
Wrong?
If a dotted orange line shows through your switch, this indicates a minor status warning for that switch.
Usually it means an issue with one of the modules. The tooltip should say exactly what is wrong. Hold
the mouse over the switch to see the tooltip.
Can I Upgrade Without Losing My Map Settings?
When you upgrade from one version of Fabric Manager to another, there is a way to prevent the loss of
map settings (enclosure names, placement on the map, etc.)
The $HOME/.cisco_mds9000/db directory contains all discovered fabrics (*.dat) and maps (*.map).
These are upgradable between 1.1 and 1.2. If you need to clear the fabric cache, you should first export
the enclosures to a file to avoid losing them. Everything else aside from enclosures and map coordinates
are stored on the switch. The preferences, last opened, and site_ouis.txt format doesn’t change from
release to release.
Are There Any Restrictions When Using Fabric Manager Across
FCIP?
Fabric Manager will work with no restriction across an FCIP tunnel, as long as the tunnel is up. However,
Fabric Manager cannot automatically discover a Cisco SN5428 mgmt ip address in the fabric. For that
switch, it will display a red slash through an FCIP device because of a timeout error. It will still see all
targets, initiators, and ISLs attached to a Cisco SN5428 (or any other switch) as long as they appear in
the name server or FSPF.
To work around this, you can manually enter the IP address in the Switches table, and click Apply. If the
community string is correct, the red slash will go away. Even if the community string is incorrect,
double-clicking on the Cisco SN5428 will launch the web tool.
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