From: jordan@warped.pnl.gov (Randy Jordan)
Newsgroups: comp.client-server
Subject: Re: info on client-server implementatios sought
Date: 6 Oct 92 21:55:44 GMT
Article-I.D.: oracle.1992Oct6.215544.444
Reply-To: jordan@warped.pnl.gov (Randy Jordan)
Distribution: comp.client-server
Organization: Battelle, Pacific Northwest Laboratory


In article <Bvpstx.qA@news.larc.nasa.gov>, virtual@schug.larc.nasa.gov (Don H. Phillips) writes:
|>Path: pnl-oracle!ogicse!usenet.coe.montana.edu!uakari.primate.wisc.edu!news.larc.nasa.gov!schug.larc.nasa.gov!virtual
|>From: virtual@schug.larc.nasa.gov (Don H. Phillips)
|>Newsgroups: comp.client-server
|>Subject: info on client-server implementatios sought
|>Message-ID: <Bvpstx.qA@news.larc.nasa.gov>
|>Date: Tue, 6 Oct 92 12:29:56 GMT+8:00
|>Article-I.D.: news.Bvpstx.qA
|>Sender: news@news.larc.nasa.gov (USENET Network News)
|>Distribution: comp.client-server
|>Organization: NASA Langley Research Center, Hampton, VA  USA
|>Lines: 32
|>
|>
|>      Our local IS shop is planning on replacing an application with
|>      a "traditional" design which utilizes a terminal emulation
|>      user interface, with one based on an X client-server architecture.
|>
|>      The current configuration has the application, which uses an
|>      SQL data base (ORACLE), running on a Decstation 5000 server.
|>      The Decstation is attached to an ethernet which in turn is on
|>      a node on a FDDI backbone local area network.  With about 30
|>      simultaneous users, the current application is using about
|>      30 percent of the available cpu time on the Decstation.  In
|>      addition to the change in the interface, expansion of the user
|>      base to level which would suggest about 50 simultaneous users
|>      is anticipated.
|>
|>      The user machines constitute a heterogeneous environment.  The
|>      majority of users have MacIntoshes, but Intel based PCs, Sun
|>      Dec, SGI, HP .... workstations are also present in the environment.
|>      The Macs have direct network connections (most do, all will).
|>
|>      The persons responsible for setting up and operating this
|>      application and system would like to here of other X client-server
|>      implementations of similar scope.  Information on successful
|>      projects, problems encountered, and user satisfaction levels
|>      would be appreciated.
|>
|>      email information to: d.h.phillips@larc.nasa.gov
|>-- 
|>      Don
|>      
|>      Donald H. Phillips       d.h.phillips@larc.nasa.gov
|>      (804) 864-4780
|>
--
	If you are planning on using the DECsystem as both a database
	server AND a X-client to 30 some X-servers BIG Mistake. If you
	are using the 5000 as a database server using database clients
	running on each pc, Mac or whatever. Then Ok.

	X is a monster. I am designing a DB application with Xvt to 
	build cross platform clients on Mac, pc and Ultrix systems.

	I intend to run DB clients on the pc Macs and Unix systems Using
	SyBase Open client and Xvt displays. The SyBase Database Server is
	currently running on my DECStation 5000/120 along with my Xvt design
	tool. 

	So far the Xvt design tool sucks the wind out of it's sails. But
	the SyBase even with a runaway SQL query does NOT impact it much.
	
	The X apps developed by the tool (C code) are about 4MB and the
	16 or 18 users I am to support could not operate at the same time
	and get the perforamce of a terminal session. But DB clients could.

	Distribute your clients with SQL*net, DO NOT RUN X on you server...

	Just my opinion.
RJ

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	To Thyne Own Self be true...
	                             myne opinions are.
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Newsgroups: comp.client-server