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I have studied the concept of Virtual storage in MVS however I am not clear
with it.
QUESTION:I am a new member of the list and also to the mainframe environment.
I have studied the concept of Virtual storage in MVS however I am not clear
with it.
Could anyone please explain :
1. How the Virtual storage come into picture when DAT (Dynamic Address
translation ) uses real storage and auxillary storage to execute the programs?
2. What's the concept of virtual address?
3. How much real storage is used by the DAT (to convert the virtual address
to real address?
ANSWER: -I would suggest Volume 1 of the ABCs of z/OS System Programming if you
haven't already read it.
http://www.redbooks.ibm.com/abstracts/sg246981.html?Open
-You could also find the answers to your questions in the z/OS Principles of
Operation, Chapter 3 ("Storage"). There is a heading in that chapter
titled "Dynamic Address Translation" which explains the hardware and the
process in decent detail.
The z/OS Principles of Operation (SA22-7832-05) is available online at URL:
http://publibz.boulder.ibm.com/epubs/pdf/a2278325.pdf
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