There's one mention of UBDUMMY as GUPI, but it doesn't define it as a bit mask, field or value.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Mark Jacobs <[email protected]> Sent: Wednesday, September 23, 2020 6:07 PM To: [email protected] Subject: Re: IEFDDSRV ― DD service Thanks. I wonder why that service specifically mentions UCBDUMMY, that doesn't seem to exist. I searched IBMLINK for it, no hits either. Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://secure-web.cisco.com/1n82Qc4PVBQOw_4rNA4psTDtPDRlQBJxsweP5xjBOJX-Viw1hqa-NK8e0CGcKsH4KczbEcDtgJ-pq1Z8d4do3y0qtUR4PZLkgvho4Pm6PbnhnPSRYFT07cRa5ZPw2Z_8e_sdaF-7I2XJzPw5VmBGiYpd6co4N0SALsMxoU0AtFXpycpbIl0syaUq-UPNGc_A3RJhXmYSC77xHlyDl-RKwT2JClwDUuq2F9Sa6QA6Phnzvm-Nv72iMkY9OnycuilVIUZY8j3C4jWHQUa5IMVcli51V8RkWYuq-H53Q6eu4FGT79ArEIVLmVJSNjTiU-pjnThJOLPQTzmmERoBYvXxHtn2Kl3Ql2QMv0xDNSke39fpvspMZ3j1je9rZ6PkEx7yvg4MiJPMJmFbbURBkQyiMKufciqceq_6Y3Bc4x2fvPklCZPvxceETTzdTLlEtF-UX/https%3A%2F%2Fapi.protonmail.ch%2Fpks%2Flookup%3Fop%3Dget%26search%3Dmarkjacobs%40protonmail.com �\�\�\�\�\�\�\ Original Message �\�\�\�\�\�\�\ On Wednesday, September 23, 2020 5:47 PM, Seymour J Metz <[email protected]> wrote: > I believe that you have to examine UCBDVCLS and UCBUNTYP (UCBTBYT3 and > UCBTBYT4), and I vaguely recall that there is a mapping macro for them. > > > ---------------------------------------------------------------------------------------------------------------------------------------------------- > > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > From: IBM Mainframe Discussion List [email protected] on behalf of > Mark Jacobs [email protected] > > Sent: Wednesday, September 23, 2020 3:56 PM > To: [email protected] > Subject: IEFDDSRV ― DD service > > I'm reading the documentation and it's telling me this; > > In some cases, this service may not return a device UCB, but instead may > return a zero UCB address or the address of a dummy UCB. This may occur for > DDs that represent DD DUMMY requests, VIO data sets, SYSOUT data sets, > in-stream data sets, and some SMS-managed data sets. A dummy UCB can be > identified using the UCBDUMMY field in the UCB. A dummy UCB may not have all > of the UCB segments that a device UCB may have and not all services that are > used for processing device UCBs may support dummy UCBs. > > I don't see a UCBDUMMY field in mapping macro IEFUCBOB. > > Mark Jacobs > > Sent from ProtonMail, Swiss-based encrypted email. > > GPG Public Key - > https://secure-web.cisco.com/1LWMSSaDWUlpY9gIzqXBpqUeduXaHVw7wSL1fxkzoPEp6ost7Tz4HLtoTrkq3WsGNB69Ba-cB7JZRryVy6EFfT2xx5gvcQfgJmfYlq5LEDbCSTyTliEHg0EFLcax8x4fF6dO22S_p5J2J-n1d-Hi-NR6nKSGOhyBN4h1R2f3spletxjRUzvmhnlnuiN5ubY5v7enJ4NsYPYNHZcZOkebLtvKTIXXJ8ucI5HEvvx_9vh-KHbanQtCgORB2QQDYAFH9LUuWgRYQZQo1CrhK10uAybzFwUICusdQsBkSBdgTk-FwRV4TiIpGVFyBloU_U5WDsnRixnWTI9auZ0Pbwy0Pm1XyJNyXuTEJ4GsH_phBOEXUFTppYUf0J1nA6WP2kqy5U7vzWTrbw5adToJjmRKK7qb8e_a-ElI1i2qFt8a0qV2026r2FftMz6bYFmnM6h32/https%3A%2F%2Fapi.protonmail.ch%2Fpks%2Flookup%3Fop%3Dget%26search%3Dmarkjacobs%40protonmail.com > > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > --------------------------------------------------------------------------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
