Actually, DATACLAS comes first, which can then be overridden as stated. A "good" SMS configuration always sets a default DSORG of PS.
Programmers who set blocksize in the application code should be "educated", perhaps using a "cluestick" :) > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Vernooy, C.P. - SPLXM > Sent: Friday, March 27, 2009 3:58 AM > To: [email protected] > Subject: Re: Optimal Tape Blocksize > > > > "Ted MacNEIL" <[email protected]> wrote in message > news:<1799752802-1238150510-cardhu_decombobulator_blackberry.rim.net-796 > [email protected]>... > > >are you saying that the application program which actually writes the > tape has the last word to decide how to block the dataset on tape ? > > > > This is explained in the JCL manual, in the section regarding BLKSIZE > (at least it used to be). > > But, the short answer is "YES". > > > > The order is: F1DSCB, which can be overruled by JCL, which can be > overruled by the application at OPEN time. > > Kees. > ********************************************************************** > For information, services and offers, please visit our web site: > http://www.klm.com. This e-mail and any attachment may contain > confidential and privileged material intended for the addressee > only. If you are not the addressee, you are notified that no part > of the e-mail or any attachment may be disclosed, copied or > distributed, and that any other action related to this e-mail or > attachment is strictly prohibited, and may be unlawful. If you have > received this e-mail by error, please notify the sender immediately > by return e-mail, and delete this message. > > Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries > and/or its employees shall not be liable for the incorrect or > incomplete transmission of this e-mail or any attachments, nor > responsible for any delay in receipt. > Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal > Dutch Airlines) is registered in Amstelveen, The Netherlands, with > registered number 33014286 > ********************************************************************** > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- 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
