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