Copying A Data Set:Note :
The CFILE utility, which was used to copy sequential and ISAM data sets, is not supported. Neither are ISAM data sets. All users with ISAM data sets should convert them to VSAM.
This article describes how to use IDCAMS/REPRO to copy a data set. It is intended as a replacement for CFILE and is not intended as complete documentation on VSAM data sets or the IDCAMS utility.
IDCAMS is an IBM utility that allows you to create and manipulate VSAM data sets. It has several commands. You can use the REPRO command of IDCAMS to copy VSAM and non-VSAM data sets, VSAM clusters, and alternate indexes.
You cannot use REPRO to copy an entire partitioned data set (PDS) because REPRO does not copy the information in the directories. You can, however, use REPRO to copy individual members.
The IBM IEBCOPY utility should be used to copy an entire PDS.
The REPRO Command
The general form of the REPRO command is as follows:
REPRO parameter parameter -
parameter -
parameter
Parameters may be separated by either commas or blanks. You can continue the REPRO statement by coding a hyphen (-) as the last character of a line. The command and parameters may be typed anywhere betweeen columns 2-72.
JCL for Using IDCAMS and REPRO
The below example shows the JCL for a basic job setup to access IDCAMS. The INFILE parameter names the DD statement for the data set that is to be copied. The OUTFILE parameter names the DD statement describing the output or target data set. You would replace "indd" and "outdd" with DD names of your own choosing.
JCL to Use IDCAMS and the REPRO Command
//COPY JOB ,'your name',CLASS=class,TIME=(mm,ss),LINES=lines
/*ROUTE PRINT node.location
// EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=A
//indd DD DSN= ... (describes the input data set)
//outdd DD DSN= ... (describes the output data set)
//SYSIN DD *
REPRO -
INFILE(indd) -
OUTFILE(outdd)
/*
Using REPRO to Copy a VSAM Data Set to A Sequential Data Set
//COPY JOB ,'your name',CLASS=class,TIME=(mm,ss),LINES=lines
/*ROUTE PRINT node.location
// EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=A
//VSAM DD DSN=UF.userid.VSAM.DATASET,DISP=OLD
//SEQ DD DSN=UF.userid.SEQ.BACKUP,UNIT=SYSDA,
// SPACE=(TRK,(10,10)),
// DISP=(NEW,CATLG),
// DCB=(LRECL=104,BLKSIZE=1004,RECFM=VB)
//SYSIN DD *
REPRO -
INFILE(VSAM) -
OUTFILE(SEQ)
/*
REPRO Examples
The below example shows how to use REPRO to copy a VSAM data set to a sequential data set. You could use this to make a sequential backup copy of your VSAM data set. In this example, assume that your VSAM data set has variable-length records. The maximum record size is 100 bytes and you have embedded keys. When you specify your LRECL and BLKSIZE for your output data set, make sure they are at least 4 bytes longer than the longest record in your VSAM data set.
Using REPRO to Backup a VSAM Data Set
//COPY JOB ,'your name',CLASS=class,TIME=(mm,ss),LINES=lines
/*ROUTE PRINT node.location
// EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=A
//OLD DD DSN=UF.userid.VSAM.DATASET,DISP=OLD
//NEW DD DSN=UF.userid.VSAM.BACKUP,DISP=OLD
//SYSIN DD *
REPRO -
INFILE(OLD) -
OUTFILE(NEW)
/*
This example assumes that you have already created the backup data set (using IDCAMS). The OLD DD name defines your original VSAM data set. The NEW DD name defines the output data set.
Optional Keywords for the REPRO Command
Suppose you want only to make a backup of part of your data set. You can use the SKIP(n) and COUNT(m) keywords on the REPRO command to delimit the records to be copied. The following form of the REPRO command would copy the input data set beginning with the 100th record and copy 500 records.
REPRO -
INFILE(VSAM) -
OUTFILE(SEQ) -
SKIP(99) -
COUNT(500)
