Re: YAIQ - Yet another ignorant question: multiple LPARs. -- MIDRANGE-L

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McKown, John wrote:

If/when we go from z/OS to an i, we plan to have three LPARs (probably
all on the same machine). The three will be: Production; Development &
QA; "sandbox" for software testing (OS and vendor, not application). On
z/OS we run these in a sysplex. That lets us safely share data directly.
I cannot see anything like this for the i. I get the impression that
data sharing on the i is done more like it is on UNIX or Windows. That
is, one system "owns" the data and if a job on another system needs
access to it, the I/O is done by the "owing" system and then sent
(TCPIP??) to the "requesting" system. I am aware that this is the method
that databases often use.
So, on an i, are the LPARs each separate with their own files, spool,
tapes, etc. What can be shared and how? A pointer to a manual would be
very appreciated.
Many thanks.
John McKown

John when we LPAR with the i OS it is a complete virtual machine if you will. with 3 LPARs you have 3 copies of the OS and the LPARs are each fully functional systems that just happen to share Processor, Memory etc.

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