Have you looked at the UCBLOOK service? See: MVS PGMMING: ASSEMBLER SERVICES REF
I do a EDTINFO RTNDEVN,UNITNAME=xxxx,DEVNLIST=DEVNLIST to (for example) get the list of device numbers associated with UNIT=SYSALLDA. All of these device numbers will have a UCB associated with them, but many are 'dummy' UCB's that have no real volume associated with them. (These are UCB's that have been genned for future DASD expansion.) Does doing a EDTINFO CHKUNIT,UNITNAME=xxxx,DEVLIST=,DEVCOUNT=,DEVSTAT= provide me the status if a real UCB is at that device # address? What I'm trying to accomplish is to build a list of on-line UCB's. I know I can do a UCBLOOK on each of the device #'s returned with the EDTINFO RTNDEVN macro and then check if the UCB is online, but I am looking for something faster. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
