This parameter determines the MSF system ID of the system, normally a JES3 global system, to which you want to route JES3 commands, from a JES3 local system, that are not routed by using a JES3 PLEXSYN (sysplex scope) CPF prefix. Normally you should allow sysplex to route JES3 commands. However, it may be desirable to use MSF to route commands from a JES3 local system in one JESPLEX to a JES3 global system in another JESPLEX in the following cases:
Only commands that begin with one of the characters specified in the JESCHAR parameter are ever routed in this way.
The copy of CA OPS/MVS that is running in a JES3 local processor uses this value to determine the JES3 global MSF ID. Except for a few special JES3 commands (*CALL DSI, *CANCEL DSI, *DUMP, *RETURN, and *START DSI), all JES3 commands issued by CA OPS/MVS running in the local processor are sent to the global processor through the MSF.
A null string
A valid MSF system ID (should be the MSFID of some JES3 global system in the MSF complex)
Anytime
Example: JES3SYSID
This function sets the JES3 system ID to JESS:
OPSPRM('SET','JES3SYSID','JESS')
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