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- From: thompson@stars.gsfc.nasa.gov (William Thompson, code 682.1, x2040)
- Subject: Re: HELP! db_Vista needed!!
- Message-ID: <13SEP199214464613@stars.gsfc.nasa.gov>
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- References: <1992Sep11.010305.1532@omrongw.wg.omron.co.jp> <1992Sep13.144203.10766@bts.com>
- Distribution: usa
- Date: Sun, 13 Sep 1992 18:46:00 GMT
- Lines: 40
-
- In article <1992Sep13.144203.10766@bts.com>, phil@bts.com (Phil Eschallier) writes...
- >In article <1992Sep11.135105.12243@magnus.acs.ohio-state.edu> dyoung@magnus.acs.ohio-state.edu (Donn C Young) writes:
-
- (stuff deleted)
-
- > Raima db_VISTA (now designated Raima) is a database management system using
- > a combination of network and relational database models. Raima is written in
- > C and may be ported to many operating systems including MS Windows, OS/2, Unix,
- > Xenix, and VAX VMS giving you a wide range of hardware options. The system
- > features such things as LAN and multi-user computer support, client-server
- > architecture, transaction processing/logging, a SQL-based ad hoc query
- > system, and database security functions.
- >
- >[ more stuff deleted ... ]
- >
- > Donn Young, Director, Biostatistics Unit, OSU Cancer Center, 614/293-3075
- > dyoung@magnus.acs.ohio-state.edu
- >
- >i am happy to see that others on the net are using db_vista (now the
- >raima data manager). i have used this product suite for years (my
- >company even provides consulting in this area).
- >
- >while i am very happy with raima's tools, i have to question the
- >'client-server' capabilities stated above. while it is possible to
- >configure data manager applications to work across a tcp/ip network,
- >you'll find a strong performance penalty due to the nature of their
- >implementation decisions. in particular, as found in the release
- >notes of 3.21, the tcp/ip lock manager closes files and re-opens them
- >on the server after each update (rather than relying on the lock
- >daemon).
- >
- >when relible lock daemons are available across all hosts in your
- >network, this is not a problem. the source to the libararies can then
- >be changed.
-
- I've heard that Raima is supposed to be coming out with a "true" client-server
- by the end of the year. I don't know any more about it than that, though--I
- just got that from their sales rep.
-
- Bill Thompson
-