On 2/11/06, Bruce Black <[EMAIL PROTECTED]> wrote: > > you might want to persue "ABCs of z/OS System Programming Volume 1" > http://www.redbooks.ibm.com/redbooks/pdfs/sg246981.pdf > > there is probably a lot more here than you need, but it has some > diagrams and text that may help you answer your questions
Thanks for your suggestion.In fact,it's just the book I mainly rely on. But frankly,it's still not a 'real textbook'.In the past year,I've done so many researches about the 'z/os storage concept' chapter of ABC vol-1 but still cannot understand it thoroughly.Off course now it's better because of your kind replies. No, the max size of *central* storage is 2 GiB, but neither real storage nor auxillary storage is so limited. A little suprising for me.With 31-bit addressing,if you have 10G real storage,only 2G can be addressable as central storage.Then,how about the use of other 8G real storage?Used as a substitiution for paging data sets? Not quite. A 5MiB region is allocated, but that doesn't mean that there is 5 MiB allocated within that region. Here I have another question.When saying 'a 5M region is allocated', does it include shared system area?I mean,if so,because all address spaces share the system area,the minimal size you allocate an address space must >= the size of shared system area.Or it can not even hold the system area. -- Best Regards, Johnny Luo ---------------------------------------------------------------------- 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
