RE: Informix for IBM S/390
Why don't you re-read the whole thing from the beginning. I was describing one of the possible ways, method 3 in the list, to run Informix on Linux on a S/390 mainframe - as I understood it - not every possible incantation of mainframe configurations. I am a UNIX guy and I was simply saying that it sounded like a lot of layers to run a database on. It reminded me of when I used to run Word Perfect in a dos emulation session on an Altos 10000 - 486 with 32 meg of ram with 100 people on it. It worked, but was not the best possible solution. Besides, none of this is actually possible since Informix does not support Linux except on Intel > -----Original Message----- > From: Carlos Benjamin [SMTP:benj@firstlinux.net] > Sent: Tuesday, 2000-August-15 9:02 AM > To: kirk.waterhouse@cibavision.exc3.Novartis.com; informix-list@iiug.org > Subject: RE: Informix for IBM S/390 > > > > --- kirk.waterhouse@cibavision.Novartis.com > > wrote: > >I don't know that much about the S/390. Just what I read on IBM's web > site > >about them running 41,000 instances of Linux on a single box - Just > >because they could. > > > >It simply seems to be a lot of layers between Informix and the metal if > you > >run it in the mode I described - and I can not imagine someone dedicating > an > >entire 390 to run Linux - directly on the box. > > What do you mean? If you run Informix in the 41,000th instance? Actually, > I thought it was 41,000 in a single VM session. As far as how insulated > Informix would be from the hardware, you need to re-read the post you > replied to: > > ">Linux runs on S/390 in all > > the same ways as traditional O/Ses run on S/390: either (1) on the > > bare metal or (2) in an LPAR (up to 15 partitions) or (3) under VM > > On the bare metal looks like very few layers to me, but I'm an optimist. > > >Try it - let us know how it works. > > > >> -----Original Message----- > >> From: mbeattie@sable.ox.ac.uk [SMTP:mbeattie@sable.ox.ac.uk] > >> Sent: Monday, 2000-August-07 6:22 AM > >> To: informix-list@iiug.org > >> Subject: Re: Informix for IBM S/390 > >> > >> In article <8mf17p$952$1@news.xmission.com>, > >> <kirk.waterhouse@cibavision.Novartis.com> wrote: > >> > > >> >Since IBM released Linux for the S/390, maybe you can run Informix for > >> Linux > >> >=:-) > >> >A database running on a operating system running on a virtual machine > >> >running on an operating system running on a mainframe. > >> >The performance would have to be phenomenal. > >> > >> You seem to be implying that it would be slow for some reason. By > >> "virtual machine running on an operating system", I assume you mean > >> VM but VM (well, CP) is an operating system in its own right and > >> runs on the bare metal (or in an LPAR). Linux runs on S/390 in all > >> the same ways as traditional O/Ses run on S/390: either (1) on the > >> bare metal or (2) in an LPAR (up to 15 partitions) or (3) under VM > >> which provides any reasonable (or even unreasonable) number of > >> virtual machines in which O/Ses can be run, whether it's OS/390, > >> CMS, VSE or Linux. Running OS/390 in a VM is fairly unpopular > >> because it's unusual to want to run lots of separate OS/390 > >> instances. > >> > >> Typically, you run Linux in an LPAR or under VM. In both cases, > >> you're running close enough to the metal to get good performance: > >> especially in the database world where I/O is extremely important. > >> Now that IBM have announced Linux Integrated Facility (an S/390 > >> engine for a third of the usual price licensed to run Linux only > >> and which doesn't affect the usually per-engine licensing costs of > >> any of your other S/390 software) and VIF (a cut down version of VM > >> for running Linux only that costs a once-off price of $20000), it's > >> even more worth considering. > >> > >> Obivously, IBM will be the first big vendor database for Linux/390 > >> when DB2 leaves beta (current timescale says beta 3Q00 and release > >> 4Q00). It might be interesting if Informix was the next out since > >> they were one of the first vendors to take Linux/Intel seriously. > >> On the other hand, getting into a new platform may be too much hard > >> work. On the gripping hand, if vendors were prepared to do lots of > >> grotty porting effort to get stuff running on NT and then have to > >> deal with all the nasty support issues of that platform then typing > >> "make" to get Informix/L390 working and having a pretty much > >> identical platform between Linux/390 and the currently supported > >> Linux/Intel should be a doddle :-) > >> > >> --Malcolm > >> > >> -- > >> Malcolm Beattie <mbeattie@sable.ox.ac.uk> > >> Oxford University Computing Services > >> "I permitted that as a demonstration of futility" --Grey Roger > > == > Maintainer of the procrastinator's FAQ. > Well, maybe tomorrow I will be. > > _____________________________________________________________ > Want a new web-based email account ? ---> http://www.firstlinux.net