Larry,
Thanks for the input.
Currently I'm running 3 LPARS, no hosting, 1 production, 1 R&D, 1 upgrade (upgrade is recent)
The only part I'm confused on, I thought on a hosted partition, the data is still spread across all arms. Can you clarify/elaborate?
Thanks
Paul
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
Sent: Thursday, October 17, 2013 1:30 AM
To: Midrange Systems Technical Discussion
Subject: Re: Pros/Cons - One large R&D i5OS partition vs several smaller i5OS hosted partitions
Some thoughts:
Keys depend on the vendor. They can create keys for the entire machine or for a partition. Each has rules that you'll need to find out from them. Some just charge more for 'whole system' while some charge a fee for each partition. IBM's keys are for the whole machine not for the partition.
If you host all the guest partitions on one then you get most of the benefit of lots of disk arms even on the smaller partitions.
The smaller partitions allow you to do various maintenance bits independently such as PTFs for example. Will need to do PTFs etc on multiple partitions. A Trade off.
You can also have things like web servers, libraries, IFS directories, etc. with the same names because they are on separate partitions.
Backing up each smaller partition is quicker of course but you'll need to do several instead of one. A trade off.
Of course each partition is separate so developers can't even accidentally trash 'the other guys' data. They can be separately secured as well.
In larger shops we see one LPAR for Production, One for pre-production QA validation, one for user approval testing, one that is the 'official'
development partition that contains all source, and then various testing partitions where data gets mucked about with.
- Larry "DrFranken" Bolhuis
www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com
On 10/16/2013 10:14 PM, Steinmetz, Paul wrote:
Currently running 1 large i5OS partition, (12 TB), 6 full copies of 1 app, 2 of another, plus multiple development tools.
What would be the pros/cons of one large R&D i5OS partition vs several
smaller i5OS hosted partitions For 3rd party products, do each hosted partition need separate license/key codes.
This would be non-VIOS.
Thank You
_____
Paul Steinmetz
IBM i Systems Administrator
Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071
610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home
psteinmetz@xxxxxxxxxx<mailto:psteinmetz@xxxxxxxxxx>
http://www.pencor.com/
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