Re: Guest Partitions -- MIDRANGE-L

Hi Rogers

Almost all of these advantages are yours if you use stand-alone independent ASPs, too. And you don't need to use FTP to move things around. IASPs have been described as mini-LPARs - they have their own system catalog for database - in fact, they can be set up as a separate RDB from the one in SYSBAS.

A nice option for some - worth investigating.

Vern

On 3/17/2011 11:26 AM, Laine, Rogers wrote:

Jerry,

You would define two partitions, the Production (Hosting) and the Test
partition.
On the Hosting partition you would define disk storage(Network Storage)
for Test.
When you build the TEST partition you would point it to the Network
Storage defined on the Hosting partitions.
The Network Storage would be separate from each partition, so you would
still need to FTP objects between them.
When Test is shut down the Network Storage would still exist on the
Hosting partition, nothing would be lost.

Now if the Hosting partition would be shut down the Test partition would
be unavailable, since the disk is part of the Hosting partition, so it
would need to be stopped before Host is shutdown.

So with this setup the Test environment would be shielded from
Production for testing. They can also have different levels of the
operating system.

Tape drive and DVD drives can be shared too.

Hope this helps explain your concerns.....

Rogers

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jerry C. Adams
Sent: Thursday, March 17, 2011 9:19 AM
To: Midrange-L
Subject: Guest Partitions

I have a BP coming in next week to give us a proposal for a Power 7
system.
One of the questions that came up, when we were talking about our
needs/wants was partitioning so that, unlike today on our V5R1 machine,
I
could have a test environment separate from production.

This morning remembered some mention of a guest partition capability
when
6.1 was announced. I read some links that Rob provided but, admittedly,
I'm
still just a tad confused or unsatisfied. That is, the 6.1 technical
overview showed how to set up a client partition, but not how to use it

In a previous incarnation I had access to two [2] physical machines; one
for
production and one for development/testing. In 7.1 can/does this guest
(client) partition insulate the host partition (what would be in my case
Production) from updates made in the client? In the 2-box scenario I
ftped
libraries back and forth between the boxes; would that be the same
methodology for the client partition scenario? And when the client
partition is ended (the Redbook didn't go into whether this could be
done or
how, but I figured it could be), do the libraries/objects in the client
just
disappear automagically?

Except for migrating objects between host and client, and using IBM i
and
disk space, I don't anticipate sharing resources. That is, such things
as
the tape drive, DVD drive, etc. But what the heck do I know. Anyway, I
just want to be able to set up a test environment that shields
production
from my tests.

Jerry C. Adams

IBM i Programmer/Analyst

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