Mainframe, MVS and zOS Discussion

Posted: **Mon Oct 27, 2014 12:23 pm**

Hi,

As we could be able to do a refer back on the DCB of the input file to catalog a new output file for any PS dataset or a GDG as given below

Code: Select all

//SYSUT1 DD DSN=ABCD.TEST.INFILE, DISP=SHR 
//SYSUT2 DD DSN=TEST.OUTFILE, 
// DISP=(,CATLG,DELETE),UNIT=DISK, 
// SPACE=(CYL,(10,1),RLSE), 
// DCB=*.SYSUT1

Similar way, is it possible to create a VSAM to VSAM file, using refer back option? And this way, the new VSAM file shall get cataloged using the in VSAM file properties, of the Input VSAM file along with the data copied.

Regards,

Posted: **Mon Oct 27, 2014 8:21 pm**

A VSAM data set does not have a DCB -- VSAM uses ACB instead. Hence it is not possible to create a new VSAM data set in JCL by using a backward reference. IDCAMS is the way to define new VSAM data sets.

Posted: **Tue Dec 02, 2014 4:46 pm**

Thanks. I just read about ACB a bit. Is ACB a macro from operating system point of view?

Posted: **Tue Dec 02, 2014 5:18 pm**

Just as DCB is a macro, so is ACB.

Posted: **Thu Dec 04, 2014 2:04 pm**

Thanks Robert. I never thought that they are called as macros....thanks.

Mainframe, MVS and zOS Discussion

Can we 'refer back' VSAM files?

Can we 'refer back' VSAM files?

Re: Can we 'refer back' VSAM files?

Re: Can we 'refer back' VSAM files?

Re: Can we 'refer back' VSAM files?

Re: Can we 'refer back' VSAM files?