z/Linux and z/OS

2012-07-26 Thread Spring, David
Good morning all, Hope this is the right place to ask this question. Please pardon the intrusion if I should be posting this someplace else. Our management is considering the acquisition of a new z114 sandbox system primarily for testing new hardware (DASD and tape). They would also like to

Re: z/Linux and z/OS

2012-07-26 Thread Bauer, Bobby (NIH/CIT) [E]
Sure, that's how we got started. Brought up Redhat on a spare lpar sharing part of a regular CP. Then got a trial version of z/VM from IBM and management was more or less sold on the z/VM-zLinux configuration. Bobby Bauer Center for Information Technology National Institutes of Health

Re: z/Linux and z/OS

2012-07-26 Thread Ron Wells
We had offering as well...but went right to z/VM for Linux..z/OS in 3lpar's..now considering z/VM with all of it under it's hat..This is being done today with our DR sight provider and proved to be very useful.. From: Bauer, Bobby (NIH/CIT) [E] baue...@mail.nih.gov To:

Re: z/Linux and z/OS

2012-07-26 Thread Richard Troth
Hope this is the right place to ask this question. Please pardon the intrusion if I should be posting this someplace else. You've come to the right list. Welcome to the party! Our management is considering the acquisition of a new z114 sandbox system primarily for testing new hardware

Re: z/Linux and z/OS

2012-07-26 Thread Peter Webb, Toronto Transit Commission
Hi David, This is the right place for this question. You should not have any problems with running z/OS and z/Linux on the same machine in separate LPARs, aside from common problems with running ANY two operating systems together on one box using LPARs (memory and CPU allocation, etc). Peter

Re: z/Linux and z/OS

2012-07-26 Thread Dave Jones
Hi, David. Yes this is certainly the right place to ask such questions; welcome. While I usually recommend installing z/VM for zLinux PoCs to my clients, you can indeed create an LPAR and run (only one copy of course) zLinux in it, with other LPARs running z/OS. BTW, this list and the one

Re: z/Linux and z/OS

2012-07-26 Thread Bruce Lightsey
We just put in a 114 and run z/OS on 2 LPARs and z/VM on 2 other LPARs with several guests under the VMs As a POC your approach will work but there are a few things to consider for the long run. 1) Unless you are running your CPs at full throttle, Linux will do much better on IFL engines which

Re: z/Linux and z/OS

2012-07-26 Thread Alan Altmark
On Thursday, 07/26/2012 at 09:48 EDT, van Sleeuwen, Berry berry.vansleeu...@atos.net wrote: I don't think it's wise to have z/VM running Linux and z/OS load in the same LPAR. Reason for this would be a license issue. The CP costs more than an IFL and when running z/OS and Linux in the same LPAR

Re: z/Linux and z/OS

2012-07-26 Thread גדי בן אבי
The short answer is yes, zLinux can run Natively on a standard processor. IBM recommends that in a production environment z/VM is used. The main reason is that is is much easier to create a new guest under VM than creating a new LPAR. Gadi -Original Message- From: Linux on 390 Port

Re: SMT Repository question

2012-07-26 Thread Mrohs, Ray (JMD)
Florian, thanks for the reply.

Re: z/Linux and z/OS

2012-07-26 Thread Bauer, Bobby (NIH/CIT) [E]
Another though. Don't run z/OS under z/VM, use the new lpar with z/VM and zLinux and leave the z/OS lpar alone. Setup hipersockets between the 2 lpars and you have isolation and at the same time FAST communication between the two. Bobby Bauer Center for Information Technology National

Re: z/Linux and z/OS

2012-07-26 Thread David Boyes
Our management is considering the acquisition of a new z114 sandbox system primarily for testing new hardware (DASD and tape). They would also like to conduct a z/Linux POC using the same machine. I know that z/Linux can run in native mode on a System z processor but I wasn't sure about it

Re: z/Linux and z/OS

2012-07-26 Thread van Sleeuwen, Berry
Hi David, It's the perfect place to ask. Yes, you can run it alongside an z/OS. It's a different LPAR and usually even a different CPU type. You need CP for z/OS and usually run IFL for zLinux. (though a Linux machine still can run on CP) Indeed, I would advise to run Linux in z/VM. Not so

Synchronous option for chccwdev -- was there a resolution?

2012-07-26 Thread David Boyes
A week or two back, someone (I think it was Florian Bilek) asked why there was a delay between invoking chccwdev and the device becoming available, and whether there was an option or command that would exit only when the device was actually available. There was some discussion of the --settle

Re: z/Linux and z/OS

2012-07-26 Thread Alan Altmark
On Thursday, 07/26/2012 at 01:05 EDT, Jerry Whitteridge jerry.whitteri...@safeway.com wrote: Exactly what we did - but with SuSE instead of Redhat. Start in an LPAR, then get an evaluation copy of z/VM and then you'll have all of the data you need to present the justification to management for

Re: z/Linux and z/OS

2012-07-26 Thread Jerry Whitteridge
Exactly what we did - but with SuSE instead of Redhat. Start in an LPAR, then get an evaluation copy of z/VM and then you'll have all of the data you need to present the justification to management for the full blown purchase. Jerry Whitteridge Lead Systems Programmer Safeway Inc. 925 951 4184

Re: z/Linux and z/OS

2012-07-26 Thread Ingo Adlung
I wouldn't go that far to state that IBM recommends a production environment to be z/VM based. Whether z/VM or PR/SM is more appropriate depends whether the runtime characteristics of the application workload benefits more from the reduced overhead PR/SM LPARs imply or from z/VM's capabilities to

Re: z/Linux and z/OS

2012-07-26 Thread Mark Post
On 7/26/2012 at 08:27 AM, Spring, David david.spr...@ssa.gov wrote: Our management is considering the acquisition of a new z114 sandbox system primarily for testing new hardware (DASD and tape). They would also like to conduct a z/Linux POC using the same machine. As you can see from the

Re: Synchronous option for chccwdev -- was there a resolution?

2012-07-26 Thread Florian Bilek
Hi David, Thank you for bringing up this topic again. No, unfortunately there was no other solution than to rerun the commands. I think there should be an option for chccwdev to wait till DE/CE is received and not to terminate with device busy. Kind regards, Florian On Thu, Jul 26, 2012 at