Classification rules

WLM uses classification rules to map work coming into the system to a service class. This classification is based upon work qualifiers. The first (mandatory) qualifier is the subsystem type that receives the work request. Table 1 lists the subsystem types that can receive z/OS® Explorer workloads.

Table 1. WLM entry-point subsystems
Subsystem type Work description
ASCH The work requests include all APPC transaction programs scheduled by the IBM-supplied APPC/MVS transaction scheduler, ASCH.
JES The work requests include all jobs that JES2 or JES3 initiates.
OMVS The work requests include work processed in z/OS UNIX System Services forked children address spaces.
STC The work requests include all work initiated by the START and MOUNT commands. STC also includes system component address spaces.

Table 2 lists additional qualifiers that can be used to assign a workload to a specific service class. Refer to MVS Planning: Workload Management (SA22-7602) for more details on the listed work qualifiers.

Table 2. WLM work qualifiers
    ASCH JES OMVS STC
AI Accounting Information x x x x
LU LU Name (*)        
PF Perform (*)   x   x
PRI Priority   x    
SE Scheduling Environment Name   x    
SSC Subsystem Collection Name   x    
SI Subsystem Instance (*)   x    
SPM Subsystem Parameter       x
PX Sysplex Name x x x x
SY System Name (*) x   x x
TC Transaction/Job Class (*) x x    
TN Transaction/Job Name (*) x x x x
UI User ID (*) x x x x
Note: For the qualifiers marked with (*), you can specify classification groups by adding a G to the type abbreviation. For example, a transaction name group would be TNG.