>It is a misdesign that the OS allows this ever to happen. The >principal use of this facility is to correct errors that were >introduced by its earlier inadvertent use. Simply, any OPEN for >WRITE with overriding attributes where the label contains different >nonzero attributes should ABEND for inconsistent attributes.
>If the programmer feels compelled to change attributes the >recourse should be: >o ZAP the VTOC, or I use the same mis-design to reset it back to the original blocksize. If the change was recent (last couple of days), I make an attempt to find the culprit and have them fix their jcl. Zapping the vtoc is the last (*very* reluctant) resort and only to be done by a very select few. >o COPY, reblock, and rename. This is the proper way to make a planned, permanent change to the dataset attributes. Regards, John ---------------------------------------------------------------------- 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
