Hi,
We have had no issues running Dataperfect on networks with several users
accessing the same database concurrently for many years. Each user may have
as many as 10 DP databases open at the same time. You may get the odd
message saying record has been edited/altered etc with other using operating
at the same time in the same database, but speed is instant even connecting
in from other countries. In that case internet speed is the determining
factor. Using windows server 2003 presently but used windows NT with citrix
server overlay, for many years prior to that without the issues you are
experiencing. Long before that we run it internally on Concurrent dos and
then an Australian operating system called System Manager- a menu version of
current dos, without issues. System Manager I believe was taken over by
Citrix and SM was left behind with the Y2k issues. We went to the windows NT
platform in 2000 as a result.
So with this many operating systems running fine, I suspect the network
system is the weak point and it's interaction with dataperfect are causing
the issues you are having. All through we have run a program called Tame to
control CPU usage and stop DP from hogging all the CPU as dos based programs
do. I'm not familiar with Free dos with regard to its CPU control mechanisms
if any.
Colin Roberts
----- Original Message -----
From: "Marcos Favero Florence de Barros" <[email protected]>
To: "DataPerfect Users Discussion Group" <[email protected]>
Sent: Friday, June 15, 2012 9:37 AM
Subject: [Dataperf] Networking DP
Hi,
The DP database I developed for the public Health Center in my
neighbourhood has been running perfectly for 6 years.
Users now decided to expand the number of computers from 4 to 8,
and connect them all into a network.
I was very confident that the network would run smoothly because
of previous experience: for about 3 years we also had computers
networked in pairs, and they ran all day long, every day,
without a single complaint.
This is in real hardware -- not virtualized --, mostly early
Pentiums donated to us. The operating system is FreeDOS, which I
also use at home for nearly all my work. The network software is
MS-Client.
Trouble started three days ago. We have to add 15,000 new
records, so I again networked a pair of computers in order to
allow two persons to work simultaneously.
The network does work, but it is in a very fragile condition. As
soon as the two people start using the database more
intensively, say, doing lots of lookups, the whole system
crashes -- server and client. The server error message is
"General failure reading drive C", which I suppose is from
FreeDOS. In the client it is DataPerfect error # 114.
I will ask the FreeDOS users group about that, but before
writing to them I wanted to check with the DataPerfect group in
order to know exactly what we can expect from networked DP
databases.
So my basic questions today are: Assuming a network is working
properly, can we use DataPerfect any way we like? Can two or
more users, say, navigate the lookups at will, as quickly as
they like? Or is there any limitation?
The only difference I can think of between the networks that
worked well for years and today's is that the former were used
basically by a doctor at the office and his/her assistant at the
reception desk, which is a light load on the system, whereas
today we are trying to use both machines intensively.
Any comments will be much appreciated.
Marcos
--------------------------------------
Marcos Fávero Florence de Barros
Campinas, Brazil
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