Tom Harper wrote on 09/14/2006 03:13:39 PM: > It has become apparent to us that the large block interface (LBI) for > tape data sets does not appear to be supported by IDCAMS nor DF/SORT. I > can find no reference in the documentation of these products for it. > > What could be the reasoning behind this?
Huh? DFSORT has supported LBI since July, 2000. Here's the Summary of Changes bullet that announced this support back then: ****************** Larger Tape Block Sizes with OS/390 R10 DFSORT can now use tape data sets with block sizes greater than 32760 bytes for input and output, providing improved performance and tape utilization. DFSORT can now select system-determined optimum block sizes greater than 32760 bytes for tape output data sets, if allowed by the BLKSZLIM value in effect. Installation and run-time options SDB=INPUT (the new IBM-supplied default), SDB=LARGE (new), SDB=YES (or its alias SDB=SMALL) and SDB=NO allow you to control DFSORT's use of system-determined block sizes, including block sizes greater than 32760 bytes for tape output data sets. DFSORT's ICEGENER, like IEBGENER, will use SDB=value parameters you specify. ************************** See the descriptions of the SDB=LARGE and SDB=INPUT parameters in "z/OS DFSORT Installation and Customization" and "z/OS Application Programming Guide" for additional information. Frank Yaeger - DFSORT Team (IBM) Specialties: PARSE, JFY, SQZ, ICETOOL, IFTHEN, OVERLAY, Symbols, Migration => DFSORT/MVS is on the Web at http://www.ibm.com/storage/dfsort/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
