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Re: Guest Partition OS Requirements on Power8



fixed

Yes, for example, you have 8 active cores but only 3 IBM i licenses.
You can still use the other 5 cores for VIOS, Linux and AIX (i'm not sure
about the last one, i know AIX doesnt ask for licenses but not sure if it
does require one legally speaking).
So you can have your Dual Vios setup with 1 core each and the 3 IBM i cores
working without any problem vs having at least 0,5Core (don't know how
licenses break up with micropartitioning) on the hosting one and the rest
for the hosted IBM i's...


On Tue, May 13, 2014 at 1:09 PM, Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>wrote:

Rob,

Are you stating that the IBM I core licensing is different when using VIOS
compared to non VIOS.
How many active cores do you have?.
How many IBM I core licenses do you have?

I have 8 active cores, but only 3 IBM I licenses.

Paul


-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Roberto José Etcheverry Romero
Sent: Tuesday, May 13, 2014 12:03 PM
To: Midrange Systems Technical Discussion
Subject: Re: Guest Partition OS Requirements on Power8

I would say that not having to buy the IBM i per-core license for the
hosting partition is a very good reason to use VIOS (VIOS uses at least 0,5
core each, more if it had a lot of resources)... but the DCR is a good idea
anyways.


On Tue, May 13, 2014 at 12:35 PM, <rob@xxxxxxxxx> wrote:

IDK. My boss still thinks VIOS is some "wave of the future". But if
we can do all of our virtualization necessary from IBM i then that
significantly reduces the expense by not tying up hardware for VIOS,
not having to support vios and learning all that stuff. and so on.


Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>
Date: 05/13/2014 11:28 AM
Subject: RE: Guest Partition OS Requirements on Power8
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



Rob,

If and when your DCR would be completed, would you no longer use VIOS
for partitioning?

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
rob@xxxxxxxxx
Sent: Tuesday, May 13, 2014 10:15 AM
To: Midrange Systems Technical Discussion
Subject: RE: Guest Partition OS Requirements on Power8

I am using fiber. I was using SCSI with LTO3 back on Power 6's but
even all those switched to fiber LTO4's.
Description: 8 Gigabit PCI Express Dual Port Fibre Channel Adapter
Feature
code: 5735 Right now it's virtualized from VIOS to four lpars of IBM i.
I've submitted a design change request to allow me to bypass vios.



Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600
Mail
to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>
Date: 05/13/2014 09:37 AM
Subject: RE: Guest Partition OS Requirements on Power8
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



Sue / Rob,

Am I correct that if the tape library was SAS attached as opposed to
fiber, then it could be virtualized, Rob I believe this is your config.
From a performance standpoint, I've always opted with fiber over SAS
attached.

From a future roadmap viewpoint, what are the options available for
tape virtualization, fiber or SAS?

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Sue

Baker
Sent: Tuesday, May 13, 2014 9:20 AM
To: midrange-l@xxxxxxxxxxxx
Subject: RE: Guest Partition OS Requirements on Power8

"Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx> wrote on Sat, 10 May
2014 22:39:33 GMT:

What are the IBM I virtualization options (host and/or guest) for
fiber attached tape, 577D?


At the present time, fibre attached tape (577D is the CCIN for feature
5735) cannot be virtualized by IBM i to any i client.

DLPARing the adapter from one partition to another is still a
reasonable way to go for fibre attached tape. I used to do this on
our systems by sending SSH commands to the HMC from my batch job stream.

--
Sue
IBM Americas Advanced Technical Sales Support (ATS) Power Systems
Rochester, MN
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