McDATA 3000 manual Diagnostics

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Diagnostics

ttag wwnPurg 2 x perm command. Issuing the ttag wwnDisp command will display the permanently purged entries in the table as purged perm in that entry.

6.Did the UltraNet Edge 3000 dynamically discover all of the devices?

a.The UltraNet Edge 3000 will not dynamically discover devices beyond what is configured in the Discover LUN Count field (the default is 8). Use UltraNet ConfigManager to statically configure LUN s out of this range in this situation. See the “Static Mapping the LUNs and Filtering the Source WWN” section in Chapter 9. The Discover LUN Count field is configured in step 10 of this section.

7.Are multiple devices connected through a FC-SCSI bridge and you don’t want the UltraNet Edge 3000 to automatically map all the devices?

a.The FC-SCSI bridge has one WWN and the devices are attached to LUNs on that WWN. The ttag wwnPurg command will purge single entries from the table, however, the ttag wwnRel command will only allow a release of a WWN which will cause the UltraNet Edge 3000 to re-discover all the devices attached to that WWN. See the “Static Mapping the LUNs and Filtering the Source WWN” section in Chapter 9.

NOTE: If a configuration has already been delivered, it is acceptable to open that configuration in UltraNet ConfigManager (UCM) and statically configure the entry in the next available position after the last discovered entry. From the UltraNet Edge 3000, issue the ttag luns command to list the current LUN map. After delivering the UCM config and the Edge resets itself, verify the new LUN map by issuing the ttag luns command.

Diagnostics

The UltraNet Edge 3000 has a number of diagnostic programs used to validate hardware functionality. When you are experiencing problems, use these diagnostic programs to ensure that the UltraNet Edge 3000 is working properly.

Access to the UltraNet Edge 3000 diagnostic programs is made through either a standalone serial connection to the UltraNet Edge 3000 or by telnetting via the Ethernet maintenance interface to the

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