Expand Configuration and Management Manual (G06.24+)

Expand Configuration and Management Manual—523347-008
21-1
21 Troubleshooting
To quickly and efficiently identify and resolve network problems, HP recommends that
you use a standard network troubleshooting methodology. This methodology should
consist of the following elements:
•
Understanding Your Network on page 21-1
•
Collecting Network Information on page 21-1
•
Identifying Network Problems on page 21-3
•
Resolving Specific Network Problems on page 21-11
•
Reporting Network Problems on page 21-31
•
Resolving Common Network Problems on page 21-33
This section explains each of the elements of the troubleshooting methodology and
shows you how to use it to resolve common Expand subsystem problems.
Understanding Your Network
A good understanding of the Expand subsystem and the normal operation of your
network are the most crucial elements in problem resolution. An understanding of the
operation of your own network should be based on:
•
Knowledge of the network design and configuration of each node in the network
•
Knowledge of the design and purpose of network applications
•
Information gathered using HP utilities during routine network checks
Collecting Network Information
This subsection describes the tools and commands provided to help you become
familiar with the normal operation of your network.
EMS
The Event Management Service (EMS) is a standard Distributed Systems
Management (DSM) interface that provides event collection, logging, and distribution
facilities. EMS messages for Expand are described in the Operator Messages Manual.
Note. ServerNet/FX adapter subsystem and FOX ring troubleshooting information are
provided in the ServerNet/FX Adapter Configuration and Management Manual.