The system summary report provides an overview of errors for each
of your installation’s principal parts or subsystems:
- Processors (CPU)
- Channels
- Subchannels
- Storage
- Operating system control programs (SCPs)
- I/O subsystems.
Important: The system summary report
does not go into detail; it shows how many errors and exceptions were
recorded overall. It is a good place to start when evaluating the
performance of your system.