Using the TSSFAR Utility › Set Up MEMLIMIT

Set Up MEMLIMIT

The IARV64 macro obtains and releases the 64 bit memory object. For this macro to work:

• You must have z/OS r1.6 or higher
• The MEMLIMIT keyword must be increased in either in the SMFPRMxx member during IPL time or on the jobcard of the JCL running TSSFAR

To increase MEMLIMIT, add the the following line to SYS1.PARMLIB(SMFPRMxx):

MEMLIMIT(4G)      

Example: Setting up MEMLIMIT

This sample sets MEMLIMIT to 4Gb:

ACTIVE                    /*ACTIVE SMF RECORDING*/             
DSNAME(SYS1.MANx)         /* DATA SET */       
NOPROMPT                  /*DO NOT PROMPT OPERATOR FOR OPTIONS*/
REC(PERM)                 /*TYPE 17 PERM RECORDS ONLY*/        
BUFNUM(4,9)               /* 4 - 4096 BUFFERS ALWAYS AND       
                             ALLOW UP TO 9 BEFORE SUSPENDING   
                             A USER FOR BUFFER SHORTAGE*/      
MAXDORM(3000)             /* WRITE AN IDLE BUFFER AFTER 30 MIN*/
STATUS(010000)            /* WRITE SMF STATS AFTER 1 HOUR*/     
JWT(0300)                 /* 522 AFTER 60 MINUTES*/             
SID(XExx)                 /* SYSTEM ID*/                        
MEMLIMIT(4G)              /* 64 BIT STORAGE */                  
SYS(TYPE(0:255),EXITS(IEFU83,IEFU84,IEFACTRT,IEFUJV,             
    IEFUSI,IEFUJI,IEFUTL,IEFU29),NOINTERVAL,NODETAIL)