Hp Support Troubleshooting Procedures - HP AdvanceNet 30244M Installation And Service Manual

Maintenance
HP Support Troubleshooting Procedures
More extensive troubleshooting can be done by the HP Customer Engineer by using the support-user
interactive dialogue of OSM. When support-user diagnostic testing of the INP identifies a malfunction
within the INP PCA board, the malfunction must be remedied on a board exchange basis. (Refer to the
paragraph entitled "Repair Philosophy" at the beginning of this section.)
When the HP Customer Engineer arrives at the computer site, the recommended troubleshooting sequence
is as follows:
L Determine that the INP is not currently in use.
2. Before initiating any other action, look into the computer card cage (through the fan) and
observe the INP self -test LEDs (see Figure 5-1 for the location of the LEOs). Note whether
the. LEOs are flickering or a static pattern is being displayed, and make a written record of
which LEOs are lighted.. This information may be needed later if the problem persists beyond
the initial steps of troubleshooting.
3. Disconnect the communication cable (the modem cable or direct-connect cable) from the
connector on the INP PCA board to physically isolate the INP subsystem for testing.
4. Run DSM, using the SUPPORT entry point (as described in the HP 300/0A130020AI
30020B/30244M Intelligent Network Processor (INP) Diagnostic Procedures Manual
under
the heading "Support User Operation") and specify the Active Mode. Run Test 2.1 (the INP
Self Test).
5. If the board fails (any pattern of lighted LEDs other than 0 and 7), replace the INP PCA board
(part no. 30244-60002). (See the paragraph entitled "Replacement of the PCA Board".)
NOTE
When sending PCA boards to the factory for replacement, refer to the
paragraph entitled "Reshipment Instructions". Include in the package your
noted observations from step 2; they may be helpful during factory-level
troubl.eshooting. Also, if a 5-and - 0 or a 3-and - 0 LED pattern was
observed in step 2, an INP dump file may have been created in PUB. SYS
(labeled IN PLOGnn , where nn is in the range from 00 to 99). If they can
be located, these INPLOG files should also be included in the package with
the defective equipment. (See Appendix B for further information on the
INP dump files.)
6.
If the board passes the self test (LEDs 0 and 7 lighted), reconnect the communication cable
(that you disconnected in step 3).
7. Again, run Test 2. 1 and observe the self -test LEDs.
8. If the INP fails the self test with the communication cable connected, while it passed with the
communication cable disconnected, the problem is probably in the communication cable or
farther "downstream" in the network.
5-7