Recommended Validity Checking

In addition to using the validity checking provided by IWMDINST, a program should check for additional errors not covered by IWMDINST.

Your program should check the following conditions not checked by IWMDINST:

• No workloads defined.
• No service classes defined.
• The response time goal for a service class period does not exceed the response time goal for the previous period.
• Duplicate service class or resource group names. The names must be unique within a service definition.
• Some rule within a subsystem type refers to a service class, but there is no default service class specified for the subsystem type. If a subsystem type has classification rules defined, then there must be a service class default defined.
• A qualifier type is repeated in a sub-rule for a subsystem type in the classification rules. Only qualifier type longer than 8 characters can be repeated in a sub-rule.
• The classification rules for a subsystem type refer to a service class with multiple periods, but that subsystem type does not support multiple periods. The subsystem types which support multiple periods are JES, ASCH, OMVS, STC, TSO, and DDF.
• The classification rules for a subsystem type refer to a service class with a resource group, but that subsystem type does not support resource groups. The subsystem types which support resource groups are JES, ASCH, OMVS, STC, TSO, and DDF.
• An unreferenced classification group. The service administrator defined a classification group, but did not use it in the classification rules.
• The classification rules for a subsystem type refer to a qualifier type not supported by the subsystem type. For a list of the qualifier types supported by each subsystem, see z/OS MVS Planning: Workload Management.
• Subsystem type does not support discretionary or velocity goals. Service class with a discretionary or velocity goal was referred to in the classification rules for that subsystem type. Subsystem types which support discretionary and velocity goals are: JES, ASCH, OMVS, STC, TSO, and DDF.