CVDA value for RRDS VSAM dataset.

amitsjcntl · New User Joined: 30 Jun 2020 Posts: 13 Location: India

Hello

I am using the INQUIRE call in my Assembler program with the field RBATYPE(FIELD1) to identify if my VSAM dataset is extended or not.

I get the CVDA value ('1128' for extended VSAM and '1129' for non-extended VSAM dataset) in FIELD1.

Question:-
I get the correct CVDA value '1128' for ESDS and KSDS extended VSAM datasets, but for the extended RRDS, I get the CVDA value of '1129'. This causes trouble in my code, as my RRDS dataset is extended, but the CVDA value is '1129'.

Does anyone have some idea about how to identify if RRDS is extended or not? Or has anyone come across this problem and have a solution?

Thanks

Garry Carroll · Posted: Mon May 15, 2023 6:57 pm

Hello,

Since IBM documentation states that '1128' is extended and '1129' in not extended, I think you should raise the issue with IBM.

Garry.

amitsjcntl · New User Joined: 30 Jun 2020 Posts: 13 Location: India

Thanks for the suggestion Garry.
I was thinking that maybe there is another way to do that (may be I might be missing something) and our mainframe experts here could suggest something.
Looks like it is not the case, then I will ask IBM about it.