About Multiple operating systems.

enrico-sorichetti · Posted: Fri Feb 26, 2010 9:59 pm

You might want to take a look at
publibz.boulder.ibm.com/zoslib/pdf/zosbasic.pdf

or better at
ABC of ZOS system programming volume 10
www.redbooks.ibm.com/abstracts/sg246990.html

wher all You might want to know about lpar is explained very well

Robert Sample · Posted: Fri Feb 26, 2010 9:59 pm

Yes, in fact you can assign separate IP addresses to each LPAR so that it can communicate as a stand alone machine to other machines. PC partitions are hard drive partitions, which are nothing like the virtual machine concept of an LPAR.

aajakashif · New User Joined: 22 Mar 2008 Posts: 27 Location: New Delhi

Azhar, welcome to the Mainframe world.

You go thru this pdf and it will give you the basics about mainframe::

www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/sg246366.html

MBabu · Posted: Sat Feb 27, 2010 5:48 am

The easiest way to think of this for me is to think of VMWARE ESXi (see vmware.com) where you have two completely different systems running on the same hardware and there is some magic piece that keeps them from clobbering each other. The same CPU/Disks/Memory and other things can be running z/OS, VM, and Linux at exactly the same time and neither one knows the other is there. They might be able to communicate, but they don't need to know that they share the same hardware. Some systems do know they share the same hardware and take advantage of that but that is much more advanced than what you are asking about.