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- Newsgroups: comp.unix.admin
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!sgiblab!munnari.oz.au!metro!basser.cs.su.oz.au!yar
- From: yar@cs.su.oz.au (Ray Loyzaga)
- Subject: Re: Advice on Large UNIX installations please
- Reply-To: yar@cluster.cs.su.oz.au (Ray Loyzaga)
- Organization: Basser Dept of Computer Science, University of Sydney, Australia
- Date: Wed, 18 Nov 1992 23:10:15 GMT
- Message-ID: <1992Nov18.231015.23553@cs.su.oz.au>
- Keywords: Resource Quotas
- References: <1992Nov17.154512.21468@ccsun.strath.ac.uk>
- Sender: news@cs.su.oz.au (News)
- Lines: 43
-
- In article <1992Nov17.154512.21468@ccsun.strath.ac.uk> craa27@ccsun.strath.ac.uk writes:
- >At Strathclyde we are discussing the pros and cons of moving from a
- >many small discless machines type of setup to one with Xterminals
- >and a few large UNIX boxex to run applications.
- >
- >We already run a DEC VMS central service which is laughingly referred
- >to as our "Mainframe" installation. It has the nice feature that
- >resources such as memory and cpu cycles can be limited for each user.
- >
- >Our worry is that users of large packages may hog a large UNIX machine,
- >and we would like to be able to place quotas on the resources in a similar
- >fashion as on our VMS service. We would also like to be able to run a batch
- >queue in the evening and at weekends.
- >
- >I would be very grateful if anybody could mail me details of facilities to
- >place quotas on users run time resources on any UNIX systems.
- >Details of any existing batch systems would be equally gratefully recieved.
- >
- >Many thanks in advance
- >
- >Steve Holmes (Strathclyde Uni Computing Service)
-
- Easy, buy any system that people are willing to sell you that can
- both cope with the load and have educational source availablity.
- Then we will GIVE you a system that implements a hierarchical
- fair share scheduler (this gets rid of CPU hogs) and a rather complete
- set of per-user/group limits, i.e. procs/mem/disk/connect/network/printers
- ....
- We currently use MIPS systems because they actually shipped the source
- before they shipped the system (this may change due to SGI) and
- run a system exactly like what you are thinking of moving to.
- 220+ Xterms, 12 CPU servers. We change the servers every 18 months or so,
- sell the old ones while they are worth money, and buy the next generation
- as soon as they are available. This has reduced our equipment budget
- requirements by a whole lot.
-
- If you want more details just send me some mail.
- Of course we tried getting some manufacturers to run this code
- (it is only about 40kb worth of text) but they don't think there
- is a market desire for a system that doesn't grind to a halt because
- some bozo decided to run 50 infinite loops. I seem to remember quite
- a few requests along these lines lately, so maybe the tide is turning.
-
-