– Is the failure repeatable?
– Has this configuration ever worked?
– What changes, if any, were made before the configuration failed?
– Is this the original reported failure?
v
Diagnostic program type and version level
v
Hardware configuration (print screen of the system summary)
v
IMM2 firmware level
v
Operating system software
You can solve some problems by comparing the configuration and software setups
between working and nonworking servers. When you compare servers to each
other for diagnostic purposes, consider them identical only if all the following factors
are exactly the same in all the servers:
v
Machine type and model
v
IMM2 firmware level
v
Adapters and attachments, in the same locations
v
Address jumpers, terminators, and cabling
v
Software versions and levels
v
Diagnostic program type and version level
v
Configuration option settings
v
Operating-system control-file setup
See Appendix A, “Getting help and technical assistance,” on page 365 for
information about calling IBM for service.
Chapter 3. Diagnostics
259
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