> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[email protected]] On Behalf Of Bill Klein > Sent: Monday, May 18, 2009 1:45 PM > To: [email protected] > Subject: Fw: BLOCK CONTAINS > > John, > What happens if you run the exact same test, but instead of > having the JCL > for your output as: > // RECFM=FB,LRECL=80,BLKSIZE=0,DSORG=PS > you instead JUST coded > // DSORG=PS > > i.e. you leave out the JCL (overrides) for RECCFM, LRECL, and > BLKSIZE) - I > think that this is when/where the different BLOCK CONTAINS > clauses make a > difference.
Ah! NOBLOCK had F/80/80 whereas BLOCK1 had FB/80/80. BLOCK0 still had FB/80/27920. But it is still interesting, to me, that BLOCK CONTAINS 1 and no BLOCK CONTAINS at all can still create an optimally block dataset with little effort in the JCL and no program changes. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell [email protected] * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ---------------------------------------------------------------------- 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
