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## 6.8.2 CKPT reconfiguration 

In JES2 MAS, all participating systems need access to the checkpoint. This checkpoint is a sensitive resource and it is available twice for security reasons. Each checkpoint includes a backup that is defined to JES2, as shown in Example 6-23. 

$DCKPTDEF $HASP829 CKPTDEF $HASP829 CKPTDEF CKPT1=(STRNAME=JES2CKPT_1,INUSE=YES,VOLATILE=YES), $HASP829 CKPT2=(DSNAME=JES2#A.RZ4.P0.CKPT2,VOLSER=SYA410, $HASP829 INUSE=YES,VOLATILE=NO), $HASP829 NEWCKPT1=(DSNAME=JES2#A.RZ4.P0.CKPT1NEW, $HASP829 VOLSER=SYA412) $HASP829 NEWCKPT2=(DSNAME=JES2#A.RZ4.P0.CKPT2NEW, $HASP829 VOLSER=SYA411),MODE=DUPLEX,DUPLEX=ON,LOGSIZE=1, $HASP829 VERSIONS=(STATUS=ACTIVE,NUMBER=50,WARN=80,MAXFAIL=0, $HASP829 NUMFAIL=0,VERSFREE=50,MAXUSED=2),RECONFIG=NO, $HASP829 VOLATILE=(ONECKPT=IGNORE,ALLCKPT=WTOR),OPVERIFY=NO 

