On Tue, 19 Jul 2016 18:47:50 +0000, Reichman Joseph wrote: >Thanks for all your help I really understand the problem thing is the file is >huge and I don't know by what factor DFSMS blocked and if the blocking is >consistent meaning always by the same factor
"Blocking factor" has little meaning for a VB file. The blocksize need not be a multiple of lrecl, and in most VB data sets the records are of varying lengths. As a consequence, the size of the blocks will usually be of varying lengths. If the data set was created with one block size and was subsequently written to (MOD) by a program that specified a different blocksize, the DSCB would have been updated to reflect the more recent blocksize, which may not be enough to read existing blocks on the data set. This is largely guesswork and supposition, based upon minimal information provided. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
