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NT4 Network is slowing, slowing down?

By pikikoko ·
My NT 4 network is slowing down Help! Small network with win98 Clients. I have install 256K ram and defraged with diskeeper and run winDoctor on all clients. Everything looks good but everything is slowing down. Main accounting application on serveris a dos based.Security is good no virus can come in. I need help in trouble shooting the network. What performance monitors to set up and what to look for. All of network is in one room. Nics are 100s. Would 1000 nic cards improve the situation. Network has been running ok in the past. Harddrive are less than 50% utilized? Back up is scheduled using NT backup. defrag is scheduled every day? How can I tell if the problem is in my RJ45 lines and hub. Hub is new. Lines are about 5 years old. 5 years ago it all ran well? NO new server apps installed since then over 5 years. SP is up to sp5. Server and Clients are never turned off. Any ideas I will try your ideas and award points for ideas that help. Thanks, Mike.

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NT4 Network is slowing, slowing down?

by DKlippert In reply to NT4 Network is slowing, s ...

Here's some suggestions from the forums:

http://tinyurl.com/3by8

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NT4 Network is slowing, slowing down?

by pikikoko In reply to NT4 Network is slowing, s ...

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NT4 Network is slowing, slowing down?

by fulford.j In reply to NT4 Network is slowing, s ...

do you have access to the internet? If so, are there times when the network is moving ok then slows down? You may find at times there are people downloading from the internet and depending what they are downloading can cause a drag on the network. Cables and hubs are fine, if they weren't then it would not be slow it just would not work.

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NT4 Network is slowing, slowing down?

by pikikoko In reply to NT4 Network is slowing, s ...

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NT4 Network is slowing, slowing down?

by Hector Ramos In reply to NT4 Network is slowing, s ...

First thing that pops up is that you never turn off your systems. Server should be cycled a couple of times a year. I've heard from Microsoft resources that 90 days is a good time to do so. The clients should be rebooted daily, specially if they're Win98 boxes.

You said that your infrastructure is hub driven, right? That will cause a bottleneck as you are running a single collision domain for your entire network. If upgrading hardware is an option, try going to switch technology BEFORE you go to gigethernet. In small networks gig-E is not cost effective. Switches will help in any size network.

Along those lines ... how many protocols are you running? People tend to install NetBEUI on Win9X systems just for giggles. Make sure that you're running the fewest number of protocols needed to do the job.

Couple more infrastructure things, while cables rarely go bad, end connectors can get frail over time. You might want to spot check a few and make sure they look OK. If you have access to a packet analyzer (NetMon will do fine), try setting one up just to see capture general traffic. If you have bad packets floating through the network, such can be caused by a failing port in your hub, the sniffer will let you know.

There's more; but, let's start with these. Hope it helps, if you want more things to try, let me know.

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NT4 Network is slowing, slowing down?

by pikikoko In reply to NT4 Network is slowing, s ...

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NT4 Network is slowing, slowing down?

by shakeelr7 In reply to NT4 Network is slowing, s ...

Hello Friend,
I am answering you in the sequence of your points mentioned in your question.
1) u said, you have installed 256 Kbps Memory. So the problem starts after installing Additional memory. If the answer is "yes" then try to replace it withthe new one with the same bus speed on which your processor operates.
If your memory is good then try to transfer your page file from Boot and System partition to some other NTFS partition.
2) u said, you are using “Dos” base application then try to enhance files and buffer in your config.nt file.
3) u said that security is good. It means you are using high level security so remember that the higher the security you use the slower you system works.
4) About performance monitor,so my friend the best thing to trouble shoots NT problems is via Event view.
5) u said, “defrag is scheduled every day” so this is the biggest mistake you are doing with your network. Run defrag when it is required.
6) u said, you are using HUBs. Try to change it with the new with 10/100 Mbps Hub or 10/100 Switch (Better). This I am saying that if you want to utilize the 100 Mbps speed on your network then the whole topology must meet the same criteria. I mean to say that your server’s Lan card, your CAT 5 cables, Hubs/Switches and your Clients Lan card should be100 Mbps compatible. Other wise if you are using single device, which do not meet this criteria then this device will let your system speed down to 10 Mpbs.
7) u said, you never turn off your client so again you are burdening on the network. Try to restart you client and server after a short while so they can manage their system at their way and remove all the temporary and unnecessary files from all systems.
the simplest way to check that your network is slowing down because of server or through your network topology is copy some file from the server and copy the same file fro

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NT4 Network is slowing, slowing down?

by pikikoko In reply to NT4 Network is slowing, s ...

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NT4 Network is slowing, slowing down?

by bb11772 In reply to NT4 Network is slowing, s ...

Sorry, just another possible tip. I've experience with NT Client/Server DOS applications over small networks and we used SYBASE or SQL. Most instances of network slowdown was due to the sometimes unusually long up time of the server. The database's log files became quite large. If they didn't reboot them every 90 days or so, the database engine couldn't efficiently handle the log files and the caching and all that. A shutdown sometimes helped a lot. Also, don't know if this is possible, but check and see about running any type of program maintenance other than the backups on the program itself. Any type of reorganizations or resynchronizations available? Purging of data? Any type of unload/reload options available for the databaseitself to kind of help compact it.

Sometimes programers weren't to neat on how they wrote their stuff. Extra junk could get into the databases. Also, if running certain types of database programs or utilities, check and make sure if Triggers are active, they are running correctly. Had one database balloon from 155MB's all the way up to 9GB's overnight due to a bad SYBASE Trigger written incorrectly.

Ben Eric

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NT4 Network is slowing, slowing down?

by pikikoko In reply to NT4 Network is slowing, s ...

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