https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.3.0/com.ibm.zos.v2r3.idad400/zfslds.htm
"Beginning in z/OS V2R1, you can specify extended addressability for a VSAM linear data set (LDS) that is neither extended-format nor SMS-managed. This allows the LDS to exceed the four-gigabyte size limit of SMS-managed data sets, and thus able to serve as a zFS version root not subject to the size limits and other restrictions of SMS-management. If you wish to change an existing VSAM LDS, use IDCAMS ALTER with the EXTENDEDADDRESSABLE (EXTADDR) parameter. This will alter an existing non-SMS LDSes to extended addressability. If you want to allocate a new VSAM LDS that is greater than four-gigabytes and non-SMS managed, you can use the IDCAMS DEFINE command with a DATACLASS specification indicating a data class that specifies extended addressability LDSes without extended format. For more information on the data class specification necessary for a non-SMS managed VSAM LDS that exceeds four gigabyte, see Extended Addressability details for VSAM data sets in z/OS DFSMSdfp Storage Administration. For the IDCAMS ALTER command, see z/OS DFSMS Access Method Services Commands." Doug On Thu, 17 Oct 2019 09:22:52 -0400, Carmen Vitullo <cvitu...@hughes.net> wrote: >IIRC the VSAM file needs to be SMS managed and / or a dataclass used the allow >for extended attributes. > > > >Carmen Vitullo > >----- Original Message ----- > >From: "Charles Mills" <charl...@mcn.org> >To: IBM-MAIN@LISTSERV.UA.EDU >Sent: Thursday, October 17, 2019 8:20:22 AM >Subject: How define a cluster bigger than 4GB? > >I am trying to define an LDS of 5992 or so cylinders and I am getting > >IDC3009I ** VSAM CATALOG RETURN CODE IS 140 - REASON CODE IS >IDC3009I IGG0CLEV-110 > >Which I interpret as saying a non-extended format cluster may not be more >than 4GB. > >Is that what VSAM is telling me? > >If so, what do I need to do to define it as extended? I don't see any >relevant parameter on IDCAMS DEFINE CLUSTER. > >z/OS V2R1, non SMS volume, FWIW. > >Thanks, > >Charles > >---------------------------------------------------------------------- >For IBM-MAIN subscribe / signoff / archive access instructions, >send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > >---------------------------------------------------------------------- >For IBM-MAIN subscribe / signoff / archive access instructions, >send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
