Re: OS/390 2.5

Mike Schwab wrote: >z13 has 31 bit mode. z14 IPLs in 64 bit mode and cannot run 31 bit >Operating systems, z/OS 2.2 SA-ICKDSF, etc. Requires z/OS 2.3 >SA-ICKDSF. These points really aren't enough to know whether OS/390 2.5 will IPL and run on a z13 or z13s machine. "No" would be my educated

Re: OS/390 2.5

z13 has 31 bit mode. z14 IPLs in 64 bit mode and cannot run 31 bit Operating systems, z/OS 2.2 SA-ICKDSF, etc. Requires z/OS 2.3 SA-ICKDSF. On Sun, Nov 26, 2017 at 6:51 AM, Mark Wilson wrote: > Hi Folks, > > I have a client who is running OS/390 2.5 and they cannot

Re: OS/390 2.5

This all comes down to what the site is willing to do for their long term viability. If they are happy with the current release and hardware, and are willing to live with the fact that at some point in time they just won't be able to fix the hardware, then they obviously are welcome to pay IBM

Re: OS/390 2.5

Brian Westerman wrote: >Any way, your client can run OS/390 2.5 on a z800 (not >an 890) which supports OS/390 through z/OS 1.13. The IBM z800 (and z900 for that matter) never officially supported OS/390 2.5. Do you have any anecdotal reports of that particular combination running (and any known

Re: OS/390 2.5

On 11/27/2017 5:57 AM, Peter Relson wrote: I don't know the official answer, but a way to guesstimate a quasi-sane answer: Pick whatever machine was made available 3 years after OS/390 2.5 became available. Any machine available after that would most likely not have had any exploitation support

Re: OS/390 2.5

On 11/26/2017 9:59 PM, Timothy Sipples wrote: Unofficially, there was a report back in 2009 in this forum that OS/390 2.4 IPL'ed under z/VM 5.3 on an IBM z990 machine. There were some restrictions (512MB memory or less, 1 CP only, and a special z/VM setting). That might have been from me. We

Re: OS/390 2.5

On Mon, Nov 27, 2017 at 11:49 AM, retired mainframer < retired-mainfra...@q.com> wrote: > It must be nice to be able to tell a customer you don't need their > business. > > ​ROI - It depends on how much the customer is willing to pay you to keep from paying IBM for the upgrade. If they have a

Re: OS/390 2.5

U > Subject: Re: OS/390 2.5 > > Why would you even waste your time with these idiots, Mark ? They have > screwed themselves into the ground. > > You can bet your boots the same team of management clowns who brought this > situation about are still in control. So I w

Re: OS/390 2.5

AIN@listserv.ua.edu> on behalf of PINION, RICHARD W. <rpin...@firsttennessee.com> Sent: Monday, November 27, 2017 9:05 AM To: IBM-MAIN@listserv.ua.edu Subject: Re: OS/390 2.5 So you are saying I can't IPL OS/360 on our z13 :) -Original Message- From: IBM Mainframe Discussion List [mai

Re: OS/390 2.5

Why would you even waste your time with these idiots, Mark ? They have screwed themselves into the ground. You can bet your boots the same team of management clowns who brought this situation about are still in control. So I would pitch them a complete upgrade to the latest software and hardware,

Re: OS/390 2.5

On Mon, Nov 27, 2017 at 8:05 AM, PINION, RICHARD W. < rpin...@firsttennessee.com> wrote: > So you are saying I can't IPL OS/360 on our z13 :) > ​Not without an "RPQ". I remember back in the 1980s when Braniff Airways (now defunct) was running OS/MVT on a 3033. It only ran because IBM wrote

Re: OS/390 2.5

So you are saying I can't IPL OS/360 on our z13 :) -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Peter Relson Sent: Monday, November 27, 2017 8:58 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: OS/390 2.5 [External Email] I don't

Re: OS/390 2.5

I don't know the official answer, but a way to guesstimate a quasi-sane answer: Pick whatever machine was made available 3 years after OS/390 2.5 became available. Any machine available after that would most likely not have had any exploitation support provided as far back as a release 3 years

Re: OS/390 2.5

I have done a lot of these types of conversions, strangely enough, the biggest jump I have ever performed (so far) was just this year at a small local government site that was still running MVS/ESA who moved to zOS 2.2, they were running on a 4381 and migrated to a z13s. The total outage was

Re: OS/390 2.5

Mark Wilson wrote: >They have asked what is the latest z Hardware they can use whilst running >OS/390 2.5, but I am struggling to find any info out there at the moment. I'm puzzled why an upgrade is not possible, but, to answer your question directly, none of IBM's z/Architecture machines (z900

Re: OS/390 2.5

OS/390 is still 31-bit only. I know zOS 1.4 will run on a mono-processor z13. Definitely going to have issues with processor reporting for products. No ideas past there. In for a difficult ride for sure. Rob On Sun, Nov 26, 2017, 12:59 PM ITschak Mugzach wrote: > ure

Re: OS/390 2.5

ure Fritz ;-) Mark, if your client goes the VM way, he need to be careful, the machine might report wrong capacity and they will have to agree on capacity with IBM and other vendors. I have a client that runs this way, and had lot of issues with vendors and IBM. ITschak On Sun, Nov 26, 2017 at

Re: OS/390 2.5

This should not be the only solution. Check a product/company it is called lzlabs. You can run all your software on x86. https://www.lzlabs.com/ > Am 26.11.2017 um 13:57 schrieb ITschak Mugzach : > > Any hardware if running under z/vm. Some model issues may raised (like >

Re: OS/390 2.5

Any hardware if running under z/vm. Some model issues may raised (like reports more mips that actual). ITschak On Sun, Nov 26, 2017 at 2:51 PM, Mark Wilson wrote: > Hi Folks, > > I have a client who is running OS/390 2.5 and they cannot upgrade their OS > for many