Hi Barbara, at our site here (z/OS 1.13) both allocations has ended with 0, are displayed as PO-datasets, but in both cases ISPF shows an I/O Error after hitting command 'I'.
So I can not confim this behaviour ... ciao Lutz ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN