> Q: How can I use the above enhancement or read more about it? RS,
As lizette kindly pointed out you need to use DFSORT's Dynamic Allocation. DFSORT's dynamic allocation of work data sets has been enhanced to improve reliability in situations where the disk work space requirements are larger than expected. A new DYNAPCT installation and run-time option allows you to specify additional work data sets to be allocated with zero space. DFSORT only extends these data sets when necessary to complete a sort application. New message ICE278I is issued if these additional work data sets are used. DFSORT's new shipped installation default of DYNAPCT=10 increases the number of dynamically allocated work data sets by 10%. These additional work data sets are allocated with zero space and only extended if required to complete a sort application. The availability of these additional work data sets can improve reliability in situations where the disk work space requirements are larger than expected. The DYNAPCT=n percentage can be changed at installation or run-time, if appropriate. If you want DFSORT to behave as it did in prior releases, you can set DYNAPCT=OLD. You can read about it here http://tinyurl.com/pd4q3td >>If any kind of SORT E15/E35 exits are being used where data is being passed to SORT(internal COBOL sort, DB2 utilities) and no FILESZ or a record count is being passed, OR reading from a unix path name, then SORT will fail miserably dynamically allocating sortwork, or will at least use the default dynamic allocation specified in your ICEOPTS, which may or may not be sufficient. Dave Jousma, A slight correction in your statement, DB2 Utilities invoke DFSORT passing us the filesize. DFSORT automatically calculates the file size and determines the right amount of storage required for the job complete. However when customers are inserting records via an E15 exit or Invoking DFSORT via a program, DFSORT will have no way of knowing an accurate record count for the file size without it being specified. You can always get around this passing an estimate of the number of records to be sorted (x) or an estimate of the number of records in the input data sets (y) using the parm OPTION FILSZ=Ennnnn. This value is not used for the record check. It is used for the file size calculations, but only if DFSORT could not reasonably estimate the input file size itself. Thanks, Kolusu DFSORT Development IBM Corporation IBM Mainframe Discussion List <[email protected]> wrote on 09/10/2015 07:21:13 AM: > From: "R.S." <[email protected]> > To: [email protected] > Date: 09/10/2015 07:21 AM > Subject: DFSORT (old) enhancement > Sent by: IBM Mainframe Discussion List <[email protected]> > > I'm just reading DFSORT presentation and found the following: > > Additional work data sets > –DFSORT V1R12 provided capability for dynamic allocation of additional > work data sets that are only used if needed > –Primary space of zero > –Secondary space only allocated if needed > > Q: How can I use the above enhancement or read more about it? > > > -- > Radoslaw Skorupka > Lodz, Poland > > > > > > > -- > Treść tej wiadomości może zawierać informacje prawnie chronione > Banku przeznaczone wyłącznie do użytku służbowego adresata. 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