1.

How Does The System Get Information About The Block Size?

Answer»

DCB info comes from :-
1) PROGRAM – FD: BLOCK CONTAINS 3 RECORDS RECORD CONTAINS 100 CHARACTERS
2) The LABEL – like a TAPE
3) From the VTOC – for Dasd
4) From the JCL – DCB=BLKSIZE=nnn.

DCB info comes from :-
1) Program – FD: BLOCK CONTAINS 3 RECORDS RECORD CONTAINS 100 CHARACTERS
2) The label – like a tape
3) From the VTOC – for Dasd
4) From the JCL – DCB=BLKSIZE=nnn.


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