Home > Storage > PowerMax and VMAX > Mainframe > Dell PowerMax: Data Protector for z Systems (zDP) Essentials > Defining a versioned data group
During the creation of a VDG users provide installation-specific parameters. The VDG and Target Set use a JCL batch job (using the EIPINIT program in your MFE LINKLIB).
Here is sample JCL that users could use to define a VDG.
//jjjjjjjj JOB (ZDP),EMC,CLASS=A,MSGCLASS=X,NOTIFY=&SYSUID,
// REGION=0M
/*JOBPARM LINES=999999
//*
//* CREATE AND DEFINE A VDG
//*
//ZDPDEF EXEC PGM=EIPINIT,REGION=0M
//STEPLIB DD DISP=SHR,DSN=your.mfe.linklib
//SYSPRINT DD SYSOUT=*
//SCF$PD40 DD DUMMY ---> Point to the SCF you are running
//*
//SYSIN DD *
GLOBAL MAX_RC(4)
DEFINE VDG VDGNEW,
….. zDP Options here
MODIFY VDG VDGNEW,ADD,
CCUU(gggg,dddd-dddd) ---> gggg = Gatekeeper, dddd-dddd = devices
//*
After receiving the 0000 Return Code, users can now see that VDG is created with the query command.