General system information
System commands display information about system-wide utilization.
The following are the areas of analysis:
- System information
- General system information (SYS command and its minor commands).
- CPU utilization
- Plot of processor utilization by user and total system (MCPUnn, SCPUnn, SIFAnn, and SIIPnn commands).
- Paging
- Plot of page-in and page-out rates by user and total system (MPGInn and MPAGnn commands).
- Page data sets
- Page data set statistics such as type, size, and status (PART command and its minor commands).
- Enqueues
- System-wide view of enqueue conflicts.
- Data sets
- Volume serial identification where data set resides, users of data set.
- Formatted control block dumps
- Dumps of critical control blocks within z/OS®.
- LPA Modules
- Status, entry point address, current use count.
- GRS
- Global resource serialization status.