Not true anymore, since the new parameters, like DYNVOLCOUNT, can change the behavior of a dataclass during the life of a data set, and therefore, changing a dataset's dataclass during its life is now also meaningful.
Kees. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Don Williams Sent: Thursday, June 06, 2013 15:03 To: [email protected] Subject: Re: Calls to SMS Data Class ACS Routine The data class is an initial source of data set attributes. The vast majority of data set attributes are stored in the VTOC/VVDS and catalog entries when it is allocated, therefore changing the data class after the data set has been allocated does not change its attributes. > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Mark Jacobs > Sent: Wednesday, June 05, 2013 8:29 AM > To: [email protected] > Subject: Re: Calls to SMS Data Class ACS Routine > > Understood. Can anyone give me some ideas on how to copy ZFS file > systems from non-EAV volumes to EAV volumes when the Data Class that > they're defined with doesn't have EATTR(OPT) assigned? > > I'm a little leery having our Storage Admin change the existing Data > Class, I'd rather have the datasets use a new one. > > Mark Jacobs > > > On 06/05/13 08:07, Elardus Engelbrecht wrote: > > Mark Jacobs wrote: > > > >> Logical copy without a replace. > >> The newly allocated SYSZFS dataset gets assigned the correct > >> storage and > management class, but the data class assigned isn't from the ACS > routine, but > from the source dataset. > >> I know the SMS routines are working since a regular allocation of a SYSZFS > dataset in JCL assigns all the expected attributes. > > Thanks. I had to RTFM and check my old DFDSS jobs, but I think this > > part > from DFSMSdfp Storage Administration applies: > > > > "For the COPY command (&ACSENVIR='ALLOC') and the RESTORE command > (&ACSENVIR='RECOVER'), the storage class ACS routine is executed > first. If the storage class is not null, the management class ACS > routine and then the > storage group ACS routine are executed." > > > > Seemed nothing is said about data class... UnlessI miss something... > > > > Look at O'Brien, David W. reply too. > > > > Groete / Greetings > > Elardus Engelbrecht > > > > -------------------------------------------------------------------- > > -- For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO > > IBM-MAIN > > > > > > > -- > Mark Jacobs > Time Customer Service > Tampa, FL > ---- > > The quiet ones are the ones that change the universe... > The loud ones only take the credit. > > Londo Mollari - Babylon 5 > > ---------------------------------------------------------------------- > 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 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
