This is an old recurring problem. Ditto for DD statement restrictions. I recall early in my career with IBM we had a homegrown job scheduler which required that every DDNAME be unique because effectively it was a single step job that controlled all "pseudo" steps in the job.
A friend of a friend in Indonesia has built some automation products that probably cover the issues here. Since these guys started late in the game, they perhaps dealt with the limitations. Link here: http://www.oocities.org/derusudibyo/zJOS.html 2011/4/21 McKown, John <john.mck...@healthmarkets.com>: >> -----Original Message----- >> From: IBM Mainframe Discussion List >> [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of john gilmore >> Sent: Wednesday, April 20, 2011 3:26 PM >> To: IBM-MAIN@bama.ua.edu >> Subject: Re: Submit a series of jobs in order aft er the pre >> vious has completed >> >> Wayne Bikerdike is quite correct. In its discussion of the >> EXEC statement the JCL manual says: >> >> | A job can have a maximum of 255 job step. This >> includes the steps in any procedures the >> | EXEC statements call. >> >> Moreover, since the count is held (as an unsigned binary >> integer) in a single byte, the usual control-block overflow >> problem precludes increasing it simplistically. >> >> That said, 255 steps or linked jobs is enough, perhaps indeed >> too many, for such shenanigans. >> >> John Gilmore Ashland, MA 01721-1817 USA > > If someone really and truly "needs" more steps, then I'd suggest that a REXX > program might be an effective way to run multiple programs in succession with > condition checking and perhaps even looping. Of course, this really plays > havoc with legacy SMF accounting routines. Or even with products such as > Strobe. > > -- > John McKown > Systems Engineer IV > IT > > Administrative Services Group > > HealthMarkets® > > 9151 Boulevard 26 • N. Richland Hills • TX 76010 > (817) 255-3225 phone • > john.mck...@healthmarkets.com • 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® is the brand name for products underwritten and > issued by the insurance subsidiaries of HealthMarkets, Inc. –The Chesapeake > Life Insurance Company®, 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 lists...@bama.ua.edu with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html > -- Wayne V. Bickerdike ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
