If you specify HFS as a filesystem in BPXPRMxx on z/OS V2R5 it will get rejected. The system will come up, but the mounting of HFS file systems will fail.
You can also specify ZFS as a parameter in IDCAMS when defining a VSAM dataset. This replaces the Dataset type of LINEAR and obviates the need for a separate format step. The format will take place when the file system is mounted the first time. Matthew On Wed, 14 Sep 2022 14:29:18 -0500, Paul Gilmartin <paulgboul...@aol.com> wrote: >On Wed, 14 Sep 2022 18:32:48 +0000, Michael Watkins wrote: > >>IBM says: 'Before z/OS V1R7, the HFS file system was the primary hierarchical >>file system. As of z/OS V1R7, you can use any combination of HFS and zFS file >>systems. Because zFS has higher performance characteristics than HFS and is >>the strategic file system, you should migrate your HFS file systems to zFS.' >> >>See: 'z/OS DFSMS Using Data Sets', Version 2, Release 5, p.451 >> >Is DSNTYPE ever needed, or even useful when allocating an existing data set? >Is DISP=OLD,DSNTYPE=?? allowed to differ from the DSNTYPE at creation >of the data set, even as an overriding DSORG can be useful? > >-- >gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
