That makes sense. But seemingly that is no longer true with z/OS 2.3 and VOL=20 means just that... try and use 21 and you get an abend.
Regards and thanks Paul -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Vernooij, Kees (ITOPT1) - KLM Sent: Wednesday, October 10, 2018 10:12 AM To: [email protected] Subject: Re: z/OS 2.3 and VOLCOUNT That is also how I recalled it, but the description of APAR OA46493 mentions a start value of 6, with additions in blocks of 15. That could explain why 21 volumes were possible with a volume count of 20. Kees. > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Giliad Wilf > Sent: 10 October, 2018 10:48 > To: [email protected] > Subject: Re: z/OS 2.3 and VOLCOUNT > > On Tue, 9 Oct 2018 12:53:45 +0000, Beesley, Paul > <[email protected]> > wrote: > As far as I remember, specifying no volcount at all lets you write up > to five volumes. > If you need more - specifying volcount 6 will let you write up to 20 > volumes, because DFSMS lets you have 5 volumes plus another whole > multiple of 15 volumes per each "extension". > So, if you expect 21 volume or more, up to 35 inclusive - you have to > specify the vocount as 21. > > >Did something change with VOLCOUNT parameter handling between z/OS > >2.1 > and 2.3? > >We have a job that uses 21 tapes to backup an application's datasets, > and has this parameter: VOL=(,RETAIN,,20), > > > >Following the upgrade to 2.3 at the weekend, this job failed S837-08, > indicating it has run out of tape volumes, which is quite correct. > >However, looking back at the previous runs, they all have used 21 > tapes. So they should really have abended as well, but all worked ok. > > > >Hence, wondering if something has changed in volume count processing, > or whether there was a bug in 2.1 which was fixed in 2.3. > >Would appreciate any suggestions before I face the Spanish > >inquisition > who are claiming that my upgrade broke their job. > > > >Paul > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN ******************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ******************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN Atos, Atos Consulting, Worldline and Canopy The Open Cloud Company are trading names used by the Atos group. The following trading entities are registered in England and Wales: Atos IT Services UK Limited (registered number 01245534), Atos Consulting Limited (registered number 04312380), Atos Worldline UK Limited (registered number 08514184) and Canopy The Open Cloud Company Limited (registration number 08011902). The registered office for each is at Second Floor, Mid City Place, 71 High Holborn, London, WC1V 6EA. The VAT No. for each is: GB232327983. This e-mail and the documents attached are confidential and intended solely for the addressee, and may contain confidential or privileged information. If you receive this e-mail in error, you are not authorised to copy, disclose, use or retain it. Please notify the sender immediately and delete this email from your systems. As emails may be intercepted, amended or lost, they are not secure. Atos therefore can accept no liability for any errors or their content. Although Atos endeavours to maintain a virus-free network, we do not warrant that this transmission is virus-free and can accept no liability for any damages resulting from any virus transmitted. The risks are deemed to be accepted by everyone who communicates with Atos by email. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
