I think my post was confusing. Normally you don't need DSNTYPE=LARGE to use multiple extents. But in your specific case, you had primary and secondary of 3335 cylinders (50025 tracks) so a second extent would put you over the 65535 limit. So that's why I said you needed DSNTYPE=LARGE to use multiple extents. Sorry for the confusion.
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 05/11/2012 03:13:32 PM: > From: Scott Barry <[email protected]> > To: [email protected], > Date: 05/11/2012 03:14 PM > Subject: Re: Confused on DFSORT SORTWK > Sent by: IBM Mainframe Discussion List <[email protected]> > > Why would I be forced to code DSNTYPE=LARGE, rather than using the > WRKSEC=Y parameter in SORTCNTL along with //SORTWKnn DDs with > secondary allocation specified? I am also curious about the SEC=nn > parameter, as well. > > For my interests, I have chosen DSNTYPE=LARGE, however one still > must remember the 16 extent per volume limitation, so it's oh so > important to code a sufficiently large enough secondary amount (and/ > or primary as well) so that a one-volume allocation can even exceed > the 65K track limitation and still be within 16 extents. > > Scott Barry > SBBWorks, Inc. > > > On Tue, 1 May 2012 15:52:41 -0400, David Betten <[email protected]> wrote: > > >Just to clarify, DFSORT can cetrainly use more than the 1st extent, it just > >can't use multiple volumes. As long as DSNTYPE=LARGE is coded on the DD > >statement, each of the SORTWK DDs should be able to use multiple extents. > >Since a 3390-9 has a capacity of 10,017 cylinders, you should be able to > >get 3 extents of 3335 cylinders on each work data set if the volumes are > >empty. > > > >> From: Neil Duffee <[email protected]> > >> To: [email protected], > >> Date: 05/01/2012 03:14 PM > >> Subject: Re: Confused on DFSORT SORTWK > >> Sent by: IBM Mainframe Discussion List <[email protected]> > >> > >> In addition to all the other responses you got regarding DynAlloc, I > >> wanted to add the nudge that DFSORT only uses the **1st** extent in > >> SortWk DD statements. Thus, SPACE=(CYL,(3335,3335)) is the same as > >> SPACE=(CYL,3335) which, in your example, only got you 10*'3335 > >> cylinders or the equivalent to 10 mod-3s. So you'd need to have 27 > >> DD statements to use your entire pool. > >> > >> --------> signature = 6 lines follows <-------- > >> Neil Duffee, Joe Sysprog, uOttawa, Ottawa, Ont, Canada > >> telephone:1 613 562 5800 x4585 fax:1 613 562 5161 > >> mailto:NDuffee of uOttawa.ca http:/ /aix1.uOttawa.ca/ ~nduffee > >> "How *do* you plan for something like that?" Guardian Bob, Reboot > >> "For every action, there is an equal and opposite criticism." > >> "Systems Programming: Guilty, until proven innocent" John Norgauer 2004 > >> > >> > >> -----Original Message----- > >> From: Mark Pace [mailto:[email protected]] > >> Sent: April 27, 2012 08:43 > >> Subject: Confused on DFSORT SORTWK > >> > >> Trying to sort a fairly large RMF data file. 20,000 + cylinders. > >> I keep running out of SORTWK space. I have 9 3390-9 volumes in my > >> SMS temporary storage pool. But I just noticed that no matter how > >> many SORTWKxx DDs I add it only allocates file on the first 5 temp > >> storage volumes. > >> Anyone have an idea how I make DFSORT use more volumes? > >> > >> //SORTWK01 DD DISP=(NEW,DELETE),UNIT=SYSDA,SPACE=(CYL,(3335,3335)) > >> [snip] > >> > >> ICE046A E SORT CAPACITY EXCEEDED - RECORD COUNT 2459859 > >> [snip] > >> > >> ---------------------------------------------------------------------- > >> For IBM-MAIN subscribe / signoff / archive access instructions, > >> send email to [email protected] with the message: INFO IBM-MAIN > >> > > > > > >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/ > >---------------------------------------------------------------------- > >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
