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JCL & VSAM :: RE: BDW in VB datasets

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Author: steve-myers
Posted: Sun May 29, 2016 9:53 am (GMT 5.5)

Look over this -
Code:
RECFM=VBA, LRECL=125, BLKSIZE=27998               
        RECORD  LOGICAL   SUM OF  SMALLEST  LARGEST
RECORD  LENGTH  RECORDS  RDW LENS  RECORD    RECORD
    1    27946     321    27942       18       125
    2    27924     310    27920       18       125
    3    27991     310    27987       18       125
The record length is the length in the BDW. Logical records is just the number of records in the block. Sum of RDW lens is the sum of the record lengths in the RDWs; it should be 4 less than the record length because the BDW uses 4 bytes. Smallest record and Largest record are self explanatory.

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