On Aug 8, 2012, at 06:06, R.S. wrote: > > .... BTW: your allocation request was > illogical - you wanted to have 80-byte records and requested 1 byte. > Such request has to be re-interpreted or canceled. ;-) > I believe the block specification is an average. As such, it's not required to be a multiple of LRECL. If half the blocks are 80 bytes and half are 160, an average of 120 is possible. Granted, 1 can never occur, not even as an average. I suppose allocation simply calculates the tracks necessary to hold the requested number of 1-byte blocks plus gaps. It might be a courtesy for allocation to issue a warning, but how much validity checking should it be expected to perform?
What about RECFM=VB? What's the smallest valid block? 9? 8? 4? (That would be a BDW with no records.) Does "Using Data Sets" allow this? I bet I could write one with BSAM; I wonder how QSAM would handle reading it? -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
