Precisely recommends using either Started Tasks or the z/OS Master Controller for large numbers of IMS BMP Apply Engines.
Example
Execute an engine subtask, running under IMS (DFSRRC00) as a BMP process within the z/OS Master Controller using the startup parameter file, MASTIMSB, listed below.
MASTIMSB Parmlib member included in the distribution
---------------------------------------------------------------------
-- SAMPLE PARM THAT CAN BE USED FOR RUNNING AN APPLY ENGINE
-- AS A STARTED TASK UNDER IMS
---------------------------------------------------------------------
-- IMPORTANT: YOU CAN ONLY RUN 1 APPLY ENGINE UNDER A MASTER
-- CONTROLLER IF YOU ARE ACCESSING IMS
---------------------------------------------------------------------
QMGR=N/A
CMDQUE=SQDATA.CMDQUE
TASKDD=SQDFILE
WTOR=Y
WTORMSG=REPLICATION ENGINE IMSTOIMS
FAILJOB=N
FAILMAX=1
--------------
NAME=IMSTOIMS
PGM=DFSRRC00
AUTOSTART=Y
NEWADDRSP=N
SCRIPT=BMP,SQDATAI,APPLYPSB,,,,,,,,,IMSA,,Y
QUEUE=SQDATA.IMSCDC.QUEUE@MQS Note:
- AUTOSTART=Y instructs the z/OS Master Controller to shutdown if the Apply Engine stops.
- The program name of the subtask is DFSRRC00, which is the name of the IMS control module. The SQData program required to run under IMS only is SQDATAI.
- The parm usually passed to IMS must be specified as the SCRIPT= value.
Master Controller JCL
SQDAMAST
sample included in the distribution
//*--------------------------------------------------------------------
//* Sample JCL to Run the SQData Master Controller SQDAMAST
//*
//* Add additional DD statements or Libraries as required
//*--------------------------------------------------------------------
//*********************************************************************
//*
//JOBLIB DD DISP=SHR,DSN=SQDATA.V400.LOADLIB
// DD DISP=SHR,DSN=IMS.SDFSRESL
//*
//SQDATA EXEC PGM=SQDAMAST
//SQDPARM DD DISP=SHR,DSN=SQDATA.V400.PARMLIB(MASTIMS)
//SQDFILE DD DISP=SHR,DSN=SQDATA.V400.SQDOBJ(IMSTOIMS)
//SYSPRINT DD SYSOUT=*
//ENGINE1 DD SYSOUT=*
//*
//FAILJCLI DD DISP=SHR,DSN=SQDATA.V400.CNTL
//FAILJCLO DD SYSOUT=(H,INTRDR)
//*
//**** PARM WORK FILE - REQUIRED IF UPSTATE=Y
//SQDPWRK DD DISP=SHR,DSN=SQDATA.V400.PARMLIB(PARMWORK)Note: The SQDFILE DD is required for execution against IMS and should reference the parsed script library member.