If they are MOD-27s, you should be able to use more than 4300 cylinders on each volume. Just make sure to code DSNTYPE=LARGE on the JCL SORTWK statements.
For a sort this large, I would also make sure your DFSORT installation default for DSA is set very large, like DSA=512. If you run into problems with this sort, feel free to send a note to our DFSORT hotline, [email protected] 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 01/20/2012 10:15:53 AM: > [image removed] > > Number of SORT WORKs needed > > af dc > > to: > > IBM-MAIN > > 01/20/2012 10:21 AM > > Sent by: > > IBM Mainframe Discussion List <[email protected]> > > Please respond to IBM Mainframe Discussion List > > Hello, > we have an DB2 unload that needs to be sorted, it has 900.000 CYLs, > I'm detemining how many sortwkxx must I put on jcl to perform > this...And according to my calculation using 255 sortwk files with > 4300 cyls as primary allocation it will not be enough.Storage group > for temporary files has a lot of free space with mod27 available. > > 900.000 * 2 = 1.800.000 cyls / 4300 = 419 sortwk !!!!!! > > Z/Os V1.12 > Can you pls give me an help ?? Any hint is welcome. > > ---------------------------------------------------------------------- > 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
