IBM Health Checker for z/OS check routines look at an installation's configuration or environment to look for potential problems. The values used by checks come from a variety of sources including product documentation and web sites, such as:

• z/OS® system test
• z/OS Service
• Parallel Sysplex® Availability Checklist at: http://www.ibm.com/servers/eserver/zseries/pso/
• ITSO Redbooks® at: http://www.redbooks.ibm.com/
• Washington System Center Flashes at: http://www.ibm.com/support/techdocs/.

  For migration to a 64–bit environment, see whitepaper WP100269 “z/OS Performance: Managing Processor Storage in a 64–bit environment”, and the Washington System Center Flash 10086, “Software Capacity Planning: Migration to 64 bit Mode”.

• Parallel Sysplex and z/OS publications:
  • z/OS MVS Initialization and Tuning Reference
  • z/OS MVS Planning: Global Resource Serialization
  • z/OS MVS Planning: Operations
  • z/OS MVS Setting Up a Sysplex
  • z/OS Security Server RACF Command Language Reference
  • z/OS Security Server RACF Security Administrator's Guide
  • z/OS UNIX System Services Planning

The description of each individual check contains the rationale behind the values used by the check for comparison against your installation settings. See IBM Health Checker for z/OS checks.