On Wed, 3 Aug 2011 15:41:56 +0100, CM Poncelet wrote: >But I should get *no* I/O error at all on read if the DCB precedence >rules for output apply also to input, as is asserted (... not by me).
Of course you should get an I/O error on read if you specify a blocksize that is inconsistent with the data on DASD. The same as you would get if it was inconsistent with the data on tape or any other medium. I notice that you totally ignored my question about what happens if the blocksize in the DCB is incompatible with the data on an unlabeled tape. Here is another one. What if your program wants to read 70 byte blocks from a card reader by specifying BLKSIZE=70 in the DCB in the program? You would get an I/O error. Do you assert that the blocksize on the card reader overrides the blocksize in your DCB? -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
