"A successful POC depends on the enthusiasm of the personnel involved which goes way beyond the scope of the POC. Yes, we may set the success factors "
We did a POC for zVM and Linux on z about 2 years ago. The POC was poorly defined and we were only doing it because the CIO said we had to. Job responsibilities were (and still are) poorly aligned to support zLinux. We need to involve at least 3 different groups to define 1 server. None of the groups had expertise in zVM or Linux. Instead of converting an existing "good fit" server to zLinux and comparing the cost and performance, we installed a brand new application (to our company) that was a "poor fit", but was pushed on us by IBM. 2 years later little has happened, the platform is floundering. No additional servers have been defined. Most people are querying whether it should be dropped completely. Personnel who are (or where) enthusiastic and could see the potential for our environment, are ignored or recommendations are rejected because there are insufficient resources and many consider moving to a new platform too risky. Sorry for the doom and gloom, but I'm just trying to say that you need more than enthusiasm to make zVM / Linux work. You need a good idea of where you are and where you want to be. You need good training and education, not just for the techo's using the system, but people who will be designing future systems. I'm probably just jealous and frustrated when I see success stories as I have been bashing my head against a brick wall for so long. Regards, Tony ________________________________ From: "Paul, Thomas" <[email protected]> To: [email protected] Sent: Tuesday, 31 July 2012 10:31 PM Subject: Re: z/Linux and z/OS Hello, We are finishing our Linux on Z POC. The cost is the main consideration z/OS license fee for the setup mentioned below. And, having VM is very important because one can have multiple Linux guests which is bound to happen in any POC. We started with few Linux guests but grew quickly. We also built a 2nd Level SSI with z/VM 6.2 and tested cpuplugd with memory and cpus. Also, did live guest relocation. A successful POC depends on the enthusiasm of the personnel involved which goes way beyond the scope of the POC. Yes, we may set the success factors but push it further and explore more, then one would find more discoveries.... As far as growth is considered, think new things like analytic (Bigdata)! This is a perfect candidate for mainframe because the processing is like batch jobs with low utilization and need a number of servers... what better model do you need to prove Linux on Z! Good Luck with the POCs. Warm Regards, Tom -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Ben Duncan Sent: Saturday, July 28, 2012 11:04 AM To: [email protected] Subject: Re: z/Linux and z/OS Roger, One of the Applications we are deploying (AND it is a BIG ONE - 380 SERVERS) is the Fed's PACER court system with Electronic Filings. We have renamed it to MEC (Mississippi Electronic Court). It eventually will have a total of 380 servers, 180 On the LPAR's z/VM and the rest on VMWARE. Cannot be helped on the VMWARE since the FEDS have a proprietary PERL library and some encryption routines the will not release source to them and they are x86 based. The Database backend is Informix on zLinux with replication all on SuSe 11.1, multipath to a 8300. The Attorneys in the STATE love the system since it looks just like the Feds System, but we are doing certain enhancements to it. Maybe here is a system for you? Just Sayin' .. Ben Duncan - Business Network Solutions, Inc. 336 Elton Road Jackson MS, 39212 "Never attribute to malice, that which can be adequately explained by stupidity" - Hanlon's Razor > -------- Original Message -------- > Subject: Re: z/Linux and z/OS > From: OAKES Roger * ETS <[email protected]> > Date: Fri, July 27, 2012 11:37 am > To: [email protected] > > > David, we've been running Linux on Z for quite a while, since about 2003 or > so. Tech management read about the IFL processor for the z/800, IBM made > them a heck of a deal and we had someone step up and offer to support Linux > and VM so we were off and running. > > Now we're floundering a bit. Tech management still sees the advantages, but > we don't have much 'new' Linux workload so in order to grow Linux on Z we > have to port existing systems from X to Z. > > The phrase Linux is Linux is Linux is still true, but the change from Linux > on Intel to Linux on Z is not an easy migration. It appears you have to > build the z/Linux guest using the s/390 kernel, install the apps and move the > data over, so you have to engage your business and development side in > acceptance testing to move something that is working to the new platform. > The technical side does see some differences, please see the note from > Dorothea Mattheus about the CPUPLUGD daemon on July 24. You just don't have > the same issues for Linux on Intel. > > I strongly believe you should run your POC. The technology does work as > advertised, maybe even better. Just please make sure there is support for > the platform where it's needed in the organization before you go live. > > Roger Oakes > > -----Original Message----- > From: Linux on 390 Port [mailto:[email protected]] On Behalf Of > Spring, David > Sent: Friday, July 27, 2012 7:02 AM > To: [email protected] > Subject: FW: z/Linux and z/OS > > Good morning again and a happy Friday to all. > > I wanted to thank everyone who responded to my post yesterday. This listserv > looks like a tremendous resource and repository of z/Linux and mainframe > knowledge. I'm sure I'll be back soon! > > David Spring > Social Security Administration > DCS/OTSO/DMSS/MOSB > MVS Operating System Team > Desk: (410) 965-9309 > BB: (443) 379-7839 > Email: [email protected] > > -----Original Message----- > From: Spring, David > Sent: Thursday, July 26, 2012 8:28 AM > To: 'Linux on 390 Port' > Subject: z/Linux and z/OS > > 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 > 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 running side > by side with z/OS. Can this be done using PR/SM and building separate LPARs > on the z114 for running z/Linux and z/OS together on the same machine? I know > that the most sensible solution would probably be to get a z/VM hypervisor > and run z/OS and z/Linux as guest operating systems under it. However, > there's a lot of resistance here to running yet another operating system such > as z/VM. > > Any comments, advice, etc.? > > David Spring > Social Security Administration > DCS/OTSO/DMSS/MOSB > MVS Operating System Team > Desk: (410) 965-9309 > BB: (443) 379-7839 > Email: [email protected] > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ******************************************************* This message (including any files transmitted with it) may contain confidential and/or proprietary information, is the property of Interactive Data Corporation and/or its subsidiaries, and is directed only to the addressee(s). 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