I personally prefer using a volume count of 1 but then setting Space Constraint Relief to YES with a dynamic volume count. That way my small files are allocated with 1 volume and additional volumes are only allocated if needed.
Have a nice day, Dave Betten DFSORT Development, Performance Lead IBM Corporation email: [email protected] 1-301-240-3809 DFSORT/MVSontheweb at http://www.ibm.com/storage/dfsort/ IBM Mainframe Discussion List <[email protected]> wrote on 06/21/2012 03:24:15 PM: > From: Bill Ashton <[email protected]> > To: [email protected], > Date: 06/21/2012 03:26 PM > Subject: SMS processing setup for secondary extents > Sent by: IBM Mainframe Discussion List <[email protected]> > > Hi again, friends! > > I have a question that should be simple to answer - I hope - and did not > want to try this and risk losing data until I asked. > > I am trying to roll up multiple GDG files created every day into a single > daily file. The files can be either very small or quite large, and so they > may take one or several extents when complete. > > If I have a volume count of 5 in my Dataclas definition, will I be safe in > that if there is not enough room for a secondary extent on my first (main) > volume, that it will automatically look on one of the other four to meet > the secondary extent? > > I wasn't sure how to test this, and so I hope you can help me! > -- > Thank you and best regards, > *Billy Ashton* > > ---------------------------------------------------------------------- > 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
