David, I'm glad you replied as I thought the single extent limitation did not sound quite right. I'm pretty sure DFSORT also has its own B37 recovery for the SORTWK as well, which would argue against a single extent limitation.
One behavior I have observed in the past is that DFSORT will only use one SORTWK on every volume when multiple datasets are allocated. So if you specify 30 SORTWK datasets through DYNALLOC or JCL, but there are only 10 eligible volumes only one of the SORTWK on each volume will be used even though ten have been allocated. It's been a while since I looked at this, but am I having a senior moment, and if I'm not are these additional datasets available for B37 recovery or as additional SORTWK space? I'm also wondering if the OPs original problem may have been caused by the installation option DYNAUTO=IGNWKDD. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On > Behalf Of David Betten > Sent: Tuesday, May 01, 2012 12:53 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: [IBM-MAIN] Confused on DFSORT SORTWK > > 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 <nduf...@uottawa.ca> > > To: IBM-MAIN@bama.ua.edu, > > Date: 05/01/2012 03:14 PM > > Subject: Re: Confused on DFSORT SORTWK Sent by: IBM Mainframe > > Discussion List <IBM-MAIN@bama.ua.edu> > > > > 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:pacemainl...@gmail.com] > > 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 lists...@bama.ua.edu with the message: INFO IBM-MAIN > > > > > Have a nice day, > Dave Betten > DFSORT Development, Performance Lead > IBM Corporation > email: bet...@us.ibm.com > 1-301-240-3809 > DFSORT/MVSontheweb at http://www.ibm.com/storage/dfsort/ > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@bama.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
