On Mon, 13 Aug 2007 12:17:20 -0400, Walt Farrell wrote: >I believe the time in SMF records (for a job identification) is the time >the job was processed on the card reader. And of course, in the days >where we had physical card readers, I doubt you would have easily gotten >two jobs with the same date/time value, simply due to the physical >delays associated with reading cards. Though I suppose, with short >enough jobs and a fast enough reader you might have been able to manage >it even then. I don't know what the time between cards was on the >fastest card readers. We actually ran into the problem accidentally (of course) at Iowa State way back in the mid-1970s because we had two (2) card readers attached to the system. One was the venerable 2540 and the other was a 2501. If the same jobname was being used (in the test reproduction case they made a few hundred copies of the same job and fed them into both card readers concurrently, "synchronized" via walkie-talkie. By duplicating the jobnames across a large enough number we eventually got two to enter on the same timestamp. (The experiment was similar to many atomic beam experiments... not coincidentally.) -- Tom Schmidt Madison, WI
---------------------------------------------------------------------- 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
