VSM checks (IBMVSM)

The storage configuration is established during system initialization, based on system parameters, the size of the modules in LPA, and the nucleus. Your storage configuration can change when the system is IPLed even if system parameters have not changed.

IBM® Health Checker for z/OS® provides several checks and diagnostic reports to detect when the storage configuration has changed or may need to be changed. Information regarding the storage configuration is saved for comparison with prior IPLs.

The VSM checks include different storage reports, including reports showing IPL parameters, size and location of CSA, SQA, LPA and the nucleus, current common storage allocation, and the five highest users of common storage (available when storage tracking is active). These reports are generated along with the check output, as appropriate.