The dataclass is only updated when the dataset is created. Once that is done, it is not changed.
However, if you do a MIG/RECALL then the dataset will be created and the Dataclas changed. So depending on how you are doing your DFDSS test, it may or may not change the Dataclas. > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Buckton, T. (Theo) > Sent: Friday, September 15, 2017 6:57 AM > To: [email protected] > Subject: Re: zEDC Compression & DFSMSDSS Move > > Hi Robert, > > Thanks I got it. I tested it by creating a data set without ZP in the > dataclas. I updated the DCACS to point the data set to a DC with ZP > specified. However, moving the data set around with ADRDSSU does not change > the compression attribute. > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Robert2 Gensler > Sent: 15 September 2017 03:42 PM > To: [email protected] > Subject: Re: zEDC Compression & DFSMSDSS Move > > Hi Theo, > > I want to make sure I understand your question. Are you asking that if you > have a data set compressed with generic or tailored compression and use > DFSMSdss to DUMP that data set specifying ZCOMPRESS, will that data set be > sent through zEDC for further compression? If so, the answer is yes, if you > specify ZCOMPRESS DFSMSdss will send generic and tailored compressed data set > through zEDC for further compression. I cannot speak to whether or not you > will see added benefit by compressing already compressed data with zEDC. > > Thanks, > Robert Gensler > DFSMSdss Architecture and Development > Tucson, AZ > 1-720-349-5211 > [email protected] > > IBM Mainframe Discussion List <[email protected]> wrote on > 09/15/2017 08:44:46 AM: > > > From: "Buckton, T. (Theo)" <[email protected]> > > To: [email protected] > > Date: 09/15/2017 08:45 AM > > Subject: zEDC Compression & DFSMSDSS Move Sent by: IBM Mainframe > > Discussion List <[email protected]> > > > > Hi, > > > > Just one question... Will a dataset that was previously created with > > generic or tailored compression, be further compressed if it is copied > > with DFSMSDSS and with zEDC enabled? > > > > Regards > > Theo > > ******************** > > > > Nedbank disclaimer and confidentiality notice: ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
