Hi Frank,
I used to work at a place that HEAVILY relied on the fact that jobs with the same name would only run one at a time. For example, job one might stop the areas of hundreds of IMS data bases, job 2 might delete and define all the areas, and job 3 might start all the areas. Obviously these jobs have to run in the right sequence, so the ability to set them all as the same job name is extremely convenient. And we couldn't put all the steps in a single job, as it would exceed the number of steps allowed (256 if memory serves?). As others have pointed out, there's no guarantee that creating jobs with the same name means they'll all run in the same order that they're submitted. But in practice they did, especially as there was usually a gap of several seconds between each job being submitted. In my opinion, the fact that jobs with the same name only run one at a time is a very good thing. And if you want jobs to run in parallel, it's not that difficult to change the jobcard from //myjobA to //myjobB before submitting. Dave Salt SimpList(tm) - try it; you'll get it! http://www.mackinney.com/products/SIM/simplist.htm > Date: Fri, 2 Oct 2009 12:43:38 -0600 > From: [email protected] > Subject: multiple jobs / same name > To: [email protected] > > I have a complaint (shocking, I know). What is the reasoning behind MVS not > allowing more than one job with the same name to run at the same time? For > instance just now I wanted to do an IDCAMS PRINT on two files. I do this > often on VSE with a job I have set up that has this: > PRINT INFILE(FILE1) - > DUMP > > I simply change FILE1 to whatever the name is and submit it. Then if I have > another one I change it again to the second file and submit it. These are > large files so it makes sense to have them both run at the same time, rather > than one after the other. But unless I change the job name on the JOB card on > z/OS the second one won't run until the first is done. Annoying! Why on earth > is this restriction present? Does it actually *help* some situations, or is > it simply one of those annoying things that has existed forever and will > probably never be changed? > > Thanks (really!), > Frank > _________________________________________________________________ Internet explorer 8 lets you browse the web faster. http://go.microsoft.com/?linkid=9655582 ---------------------------------------------------------------------- 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
