I didn't see the original question, so I'm replying to a reply. Hopeful it will help more than hurt. <grin>
> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of John S. Giltner, Jr. > Sent: Thursday, December 15, 2005 9:13 PM > To: [email protected] > Subject: Re: Mainframe Applications and Records Keeping? > > <snip> > >>Hello - > >> > >>My name is Andy, and I am very interested on the > >>Mainframes. I wish to know from an expert like you if > >>the IMS database application can run under SUSE LINUX? > >>In other words, can it only be ran under Z/OS? or, > >>could it be also ran under SUSE LINUX? > >> > > IMS does NOT run on any Linux. It does run on z/OS, I am not > sure if it > can run on z/VM or z/VSE. Others on the list will know this > and answer. IMS runs only on z/OS. Not on z/VM or z/VSE or any other operating system. So any IMS application must run on z/OS. It cannot run on anything else. > > >>Also, from your years of experience in the Mainframe > >>enviroment, what would you suggest or recommend using > >>as a stable and secure Mainframe operating system? > >>LINUX or UNIX? > >> There is only one UNIX branded OS that runs on zSeries hardware. That is z/OS UNIX (a part of z/OS and z/OS.e). If you strictly need a branded UNIX on zSeries hardware (and no "legacy" zSeries applications such as IMS), then z/OS.e is a z/OS variant which is UNIX branded and is much less expensive than the "full blown" z/OS. There are many restrictions on what can and cannot run on z/OS.e, so you'd need to have someone verify that z/OS.e is applicable to your work load. Technically speaking, Linux is not UNIX. It is not branded as such. It has not passed any of the tested to receive the name UNIX. However, it is a very good UNIX-like system with good support from IBM, RedHat, SuSE, and the general Linux community. Again, depending on __exactly__ what __you__ need to do, Linux may be the __best__ (for some value of "best") choice. Linux is not as robust or secure as z/OS (in my opinion). But it is quite good (again, in my opinion). > > My personal opinion is z/OS. However that is the only > mainframe OS have > I worked with. There are others like z/VM, z/VSE, z/TFP (all > IBM) and > Unisys' MCP. There could be others, but I am not sure if I would > consider Unix a mainframe OS. Today's mainstream Unix's (at > least the > OS's that most consider Unix) don't run on mainframes, but on > what most > consider large mid-range comptuers. z/OS is "branded" Unix, but I am > not sure if I would call it "Unix." Yes, it is UNIX (in my opinion). It is different from Solaris, HP-UX, and other UNIX branded systems. And it is EBCDIC based instead of ASCII based (which really messes up some processes such as "sort" which returns things in different orders on EBCDIC vs. ASCII systems). But you can approach it from the viewpoint of a UNIX person and they could do most of their work. There are some things "missing" which are not really UNIX, pe se, but are considered by many to be a part of UNIX. Things such as a current EMACS editor, other various editors (z/OS only comes with "vi"). Or "Berkeley DB", MySQL, PostgreSQL, Python. Some these have been ported and are available, but they are not supported by IBM. And they tend to stay out-of-date compared to other UNIX systems. One of my dreams/fantasies in the past was to be able to have an ADCD system (special z/OS that runs under an emulator called FlexES on Intel hardware) which I would use to "port" as many of the GNU utilities (and others) to run under z/OS UNIX. Unfortunately, I just couldn't afford a FlexES system/license. It is really meant for commercial developers who cannot afford a zSeries. Thus are dreams/fantasies crushed by cruel reality. > <snip> > >>Andy > > > > > -- John McKown Senior Systems Programmer UICI Insurance Center Information Technology This message (including any attachments) contains confidential information intended for a specific individual and purpose, and its' content is protected by law. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this transmission, or taking any action based on it, is strictly prohibited. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
