Guidelines for migrating Librarian Master files from z/VSE to z/OS
Article ID: 256407
Updated On:
Products
Issue/Introduction
Migrating from z/VM z/VSE to z/OS and would like to have some overall guidelines for converting Librarian Master files.
Environment
Release : 4.4
Resolution
Option 1 - Tape Backup and Restore
For each Master file, create a tape backup on the z/VSE system and Restore it on the z/OS system:
1) Backup the Librarian Master file on the z/VSE system:
* $$ JOB
// JOB
/*
// ASSGN SYS004,DISK,VOL=volser,SHR
// DLBL MASTER,'vse.LIBRAIAN.MASTER.FILE',,DA
// EXTENT SYS004,volser,1,0,reltrk,ntrks
// ASSGN SYS010,CUU
// TLBL BACKUP,'LIBR.BACKUP.TAPE'
// EXEC LIBRPROG,SIZE=AUTO
-OPT BKUPTAPE,INDEX,BLKSIZE=xxxxx
-END
/*
/&
* $$ EOJBLKSIZE=Specify the block size for a backup tape through the BLKSIZE subparameter of the DCB. You can specify any block size but, for maximum efficiency, specify a block size of 8000 to 9000 for a backup tape with a density of 1600 bpi and 12,000 to 13,000 for a backup tape with a density of 6250 bpi. For 3480 devices, specify a block size between 16,000 and 24,000.
2) Initialize and Restore the Librarian Master file on the z/OS system:
//********************************************************************
//* THIS JOB WILL RESTORE ALL MEMBERS ON A TAPE BACKUP *
//* FILE TO A NEW MASTER FILE. *
//********************************************************************
//INITMAST EXEC PGM=AFOLIBR,PARM='NRJS,NJTA'
//MASTER DD DSN=zOS.LIBRAIAN.MASTER.FILE,
// DISP=(,CATLG,DELETE),
// DCB=(DSORG=DA,BLKSIZE=nnnn),
// SPACE=(CYL,nnn),
// UNIT=unit,VOL=SER=zosvolser
//SYSPRINT DD SYSOUT=*
//INDEX DD SYSOUT=*
//OSJOB DD DUMMY
//SYSIN DD *
-OPT INIT,DISK
-END
/*
//RESTORE EXEC PGM=AFOLIBR,PARM='NRJS,NJTA'
//SYSPRINT DD SYSOUT=*
//LIST DD SYSOUT=*
//INDEX DD SYSOUT=*
//OSJOB DD DUMMY
//MASTER DD DISP=SHR,DSN=zOS.LIBRAIAN.MASTER.FILE
//BACKUP DD DSN=LIBR.BACKUP.TAPE,
// DISP=(OLD,KEEP),
// VOL=SER=volser
//SYSIN DD *
-OPT RESTORE,INDEX
-END
/*
Note1: DSORG=DA Master files should not be put under SMS control
Note2: If the backup file spans tapes, the JCL must reflect both volumes if the data set is not cataloged.// VOL=SER=(volser1,volser2)
Option 2 - Shared DASD Disk-to-Disk Copy
If DASD is shared between the z/VSE and z/OS system, the BKUPDISK utility can be used.
If the VSE Master file is a VSAM file, need to back it up to a DA file so it can be read on the z/OS system.
1) Verify that the ACCMETH parm in the LIBGEN is set to (BDAM,VSAM):
// JOB
// LIBDEF *,SEARCH=lib.sublib,CATALOG=lib.sublib
// OPTION CATAL
// EXEC ASSEMBLY
LIBGEN ACCMETH=(BDAM,VSAM),....
END
/*
// EXEC LNKEDT
2) Copy the Master file from the VSE volume to the Shared DASD volume by running the following job on the z/VSE system:
// OPTION LOG
// LIBDEF PHASE,SEARCH=lib.sublib
// ASSGN SYS008,UA ASSIGN FOR JOBSTR
/* this is the input Master file
// DLBL IJSYSUC,'USER.CATALOG',,VSAM
// ASSGN SYS004,247
// DLBL MASTER,'VSE.LIBR.MASTER',,VSAM,CAT=IJSYSUC
// EXTENT SYS004,volser
/* this is the output Master file on a volume shared with z/OS
// ASSGN SYS010,DISK,VOL=volser,SHR
// DLBL BACKUP,'VSE.BACKUP.MASTER',,DA
// EXTENT SYS010,volser,1,0,sssss,llllll
// EXEC LIBRPROG,SIZE=512K
-OPT BKUPDISK,INDEX,BLKSIZE=2048
/*
/&
3) Copy the Master file to the z/OS system by running the following job on the z/OS system to copy the Master file from the Shared volume to a z/OS DASD volume:
//LIBRBKUP EXEC PGM=AFOLIBR,PARM='NRJS,NJTA'
//* this is the input Master file from VSE
//MASTER DD DISP=SHR,DSN=VSE.BACKUP.MASTER
//* this is the output Master file
//BACKUP DD UNIT=DISK,DSN=zOS.LIBRAIAN.MASTER.FILE,
// SPACE=(CYL,nnn),DISP=(,CATLG),
// VOL=SER=zosvolser
//SYSPRINT DD SYSOUT=*
//INDEX DD SYSOUT=*
//LIST DD SYSOUT=*
//OSJOB DD DUMMY
//SYSIN DD *
-OPT BKUPDISK,INDEX
-END
/*
//
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