[Default] On 10 Jul 2018 15:33:56 -0700, in bit.listserv.ibm-main [email protected] (John Clifford) wrote:
>it is not the default but is the only correct way to access a vsam file. >disp=shr,dsn=xxxx.vsam (possible bufno,bufni,...etc) > >Never disp=new or delete. Disp=old can be used if you need to make sure >you are the only one accessing the file but if it is open in CICS it will >hang. As of over 13 years ago, you could allocate a VSAM file in JCL and even a temporary one. I never used the facility but it is there. Clark Morris > >On Tue, Jul 10, 2018 at 6:07 PM, Tony Thigpen <[email protected]> wrote: > >> So, DISP=SHR is not the default, as I thought was implied by John's >> statement that "Z/os VSAM is always accessed as DISP=SHR." >> >> Tony Thigpen >> >> Gibney, Dave wrote on 07/10/2018 05:49 PM: >> >>> If DISP=SHR (that is if not DISP is provided), then the JCL Default of >>> (NEW,PASS) would happen and the job would fail >>> >>> -----Original Message----- >>>> From: IBM Mainframe Discussion List [mailto:[email protected]] >>>> On Behalf Of Tony Thigpen >>>> Sent: Tuesday, July 10, 2018 2:43 PM >>>> To: [email protected] >>>> Subject: Re: z/OS JCl vs. VSE JCL: VSAM files >>>> >>>> Then, why does every VSAM DD for every z/OS site I have worked with, >>>> always include DISP=SHR? >>>> (I guess, because it's a habit from non-VSAM files and nobody told them >>>> they >>>> did not have to do it.) >>>> >>>> Tony Thigpen >>>> >>>> John Clifford wrote on 07/10/2018 04:16 PM: >>>> >>>>> Z/os VSAM is always accessed as DISP=SHR. >>>>> >>>> >>>> ---------------------------------------------------------------------- >>>> 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
