On Fri, 15 Aug 2008 09:07:52 -0400, William F Besnier <[EMAIL PROTECTED]> wrote:
>I'm not explaining my concerns correctly. My concern is not the number of >extents used; it is the space allocated, the JCL space parameter is asking >for 2500,100 cylinders of space for a total 4000 cylinders. What seems to >have happened is the first volume was allocated the primary + 3 extents for >2800 cylinders; the second volume was allocated 16 extents of 100 cylinders >for 1600 cylinders - rlse, the total being 4331 cylinders being allocated >when only 4000 was requested. The file/volume are non-SMS and my question is >WHY ISN'T THE JCL REQUEST BEING HONOURED? Perhaps I don't understand something here, but you seem to be making an erroneous assumption that SPACE= (CYL,(2500,100)) requests a " total of 4000 cylinders". It requests a primary space allocation of 2500 cylinders, and secondary allocations of 100 cylinders. True, if you consider only a single volume, and only 16 extents, that gives you a max of 4000 cylinders. But you don't have a single-volume case, if I've read this thread correctly. You have a multi-volume case, and there each volume can have up to 16 extents, where each volume after the first uses an allocation unit of 100 cylinders per extent. So, in theory, you could have 4000 cylinders on the first volume, 1600 cylinders on a second volume, 1600 cylinders on a third volume, etc. for as many volumes as you've allowed the data set to expand onto. -- Walt ---------------------------------------------------------------------- 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
