Terms used in z/OS workload management
The following terms are used in the description of z/OS® workload management.
- classification rule
- A rule used by the workload manager component of z/OS to assign a service class.
- service class
- A group of work that has the same service goals or performance objectives, resource requirements, or availability requirements. For workload management, a service goal and, optionally, a resource group is assigned to a service class.
- service definition
- An explicit definition of all the workloads and processing capacity in a sysplex. A service definition includes service policies, workloads, service classes, resource groups, and classification rules.
- service policy
- A set of performance goals for all z/OS images using z/OS workload management in a sysplex. There can be only one active service policy for a sysplex, and all subsystems in goal mode within that sysplex process towards that policy. However, you can create several service policies, and switch between them to cater for the different needs of different processing periods.
- workload
- A group of service classes.