z/OS HCD User's Guide
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Upgrade IODF

z/OS HCD User's Guide
SC34-2669-00

Upgrade IODF

This utility function upgrades a back-level IODF to be accessible with the current HCD release.

You have to allocate:

  • The IODF you want to upgrade with DD name HCDIODFS
  • The IODF into which the I/O definitions are to be upgraded with DD name HCDIODFT

This function is invoked by passing the following parameter string.

Upgrade an IODF 
Read syntax diagramSkip visual syntax diagram|--UPGRADE------------------------------------------------------|
Notes:
  1. The target data set must be large enough to hold the source IODF.
  2. The target IODF may be created using the utility Initialize IODF (described in Initialize IODF).
  3. Both data sets must be valid IODFs.

Batch invocation

A data set must be allocated to the following DD names when invoking the batch utility.

DD nameDescription
HCDIODFSBack-level IODF to be upgraded
HCDIODFTIODF into which IODF definitions are to be upgraded (if not specified, the IODF is upgraded in place)
HCDMLOGHCD Message Log data set
HCDTRACETrace data set (if trace is activated)

Example:  

//BWINJOB  JOB (3259,RZ-28),'BWIN',NOTIFY=BWIN,CLASS=A,
//             MSGCLASS=Q,MSGLEVEL=(1,1),REGION=4M
//*
//* UPGRADE IODF
//*
//UPGRADE  EXEC PGM=CBDMGHCP,PARM='UPGRADE'
//HCDIODFS DD   DSN=BWIN.IODFR2.WORK,DISP=SHR
//HCDIODFT DD   DSN=BWIN.IODF00.WORK,DISP=OLD
//HCDMLOG  DD   DSN=BWIN.HCD.LOG,DISP=OLD
//

For considerations concerning the size when upgrading a back-level IODF, refer to Table 2.

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