Using the HP DTC 16RX Manager

114

Troubleshooting checklist

Consider the following questions to clarify the source of the problem:

For the DTC

• Did the problem occur during or just after a DTC was installed?

• Did the problem occur just after a hardware change?

If you suspect a DTC hardware problem, consult the DTC hardware manual.

• Is the problem isolated to one specific DTC, or on a specific port on a DTC?

The rdtcstat command can help you isolate the problem to a speciﬁc port on a

DTC. Consult page 124 for more information.

• Did the problem occur following a storm or a power cut?

For the DTC Manager and the network

• Did the problem occur just after a software configuration change?

This could be due to an incorrect or invalid DTC conﬁguration.

• Did the problem occur after a cabling change?

• Is the problem isolated to a particular user or to a particular program?

• Is the problem isolated to a group of DTCs in a particular subnet?

• Can the problem be reproduced?

• Does the problem affect all users trying to access a particular system?

This could be due to improperly functioning Internet Services on an HP 9000

destination host.

Use the troubleshooting chart to help you locate the problem. The procedures in the

ﬂowchart are described in the rest of this chapter.