RE: i5 vs. p5

After a quick glance through this doc, it appears it can run on the 570,
590, and 595 with 1.65 GHz processors.  I imagine the doc probably needs
to be updated, because I can assign i5/OS partitions through LVT on a
new 1.9 GHz pSeries system without an error.

AIX/Linux can run on pretty much any i5 edition.  I don't have the doc
to prove it to the naysayers right now - you can probably view it in the
system handbook.  The nice thing about AIX/Linux on i5 is that you can
use virtual disk.  Doing it the other way around, running i5/OS on a
pSeries requires dedicated disk/IO towers/etc.. from the looks of this
document.

Here are some snippets from the pSeries book:
* The eServer p5 570 server supports up to one 1.65 GHz processor worth
of i5/OS workload. 
* The eServer p5 590 and 595 servers support up to two 1.65GHz
processors worth of i5/OS 
workload. 

Important: i5/OS running on a pSeries server is intended for customers
who have a 
limited amount of i5/OS workload, limited growth anticipated for this
workload, and wish to 
consolidate onto a single server where the majority of the workload will
be either AIX 5L or 
Linux. Clients who wish to upgrade their current iSeries servers,
anticipate continued i5/OS 
application workload growth, or wish to leverage their iSeries skills to
manage the 
consolidated environment, the IBM eServer i5 remains the best choice in
server platform.

My brain hurts.  The long and the short of it is that these boxes are
all basically the same with the exception of the VPD which tells the
machine what it is and what features it has.  Hardware platform
consolidation - I think that's part of the roadmap.

--
Justin C. Haase - iSeries System Engineer
IBM Certified Systems Expert - System i
Kingland Systems Corporation

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Haase, Justin C.
Sent: Friday, July 28, 2006 9:53 AM
To: Midrange Systems Technical Discussion
Subject: RE: i5 vs. p5

Read the redbook about p5's for the answer.

It is limited, and it's not very cost-effective unless you have a
specific task to perform.

http://www.redbooks.ibm.com/abstracts/sg248001.html?Open

IBM i5/OS on p5 servers is intended for clients with a relatively small
amount of i5/OS applications, whose focus and IT strategy are centered
on UNIX.  


--
Justin C. Haase - iSeries System Engineer IBM Certified Systems Expert -
System i Kingland Systems Corporation

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Ingvaldson, Scott
Sent: Friday, July 28, 2006 9:46 AM
To: midrange-l@xxxxxxxxxxxx
Subject: i5 vs. p5

Seriously what's the difference?  Can anyone definitively say that you
can't (or can) load i5/OS on any 5xx model p5 or load AIX on any 5xx
series i5?
 
I took a plant tour at IBM Rochester yesterday and the tour guide
specifically said that there was no way to tell an i5 from a p5 until
the cover was put on.  Later I asked one of the engineers and she said
that other than licensing and support issues she didn't know why it
wouldn't work.
 
A thread earlier this week suggested that i5/OS could only run on p5 in
a "limited fashion" and it would cost "a GAZILLION dollars."   Does
anyone really know?
 
Regards,
 
Scott Ingvaldson
iSeries System Administrator
GuideOne Insurance Group