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Jaime CamposFlag for United States of America

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How to maximize server throughput and ensure I'm using the best configuration.

Hello,

I'm trying to figure out how to run a test on my network to see where my bottleneck is on my network. I have some very important servers that my physicians really depend on during their clinic with a patient. I have a HQ which host all my EMR servers and 10meg fiber to all my outside EMR Clinics. I have DSL on a separate route, so traffic is not with EMR data traffic into HQ. All offices have gigbyte swithces with CAT6. All PCs run 100/1000 nics. All tablets run 100/1000 nics/ wireless N compatiable with wifi connection from 90mbps to 130mbps. All my APs are wireless N.

Now at some time our physicians complain that the wireless is slow and will lag 10seconds between screens while in my EMR application that is at our HQ. It's not consistant, but it happens alot more. I have 5 dedicated EMR servers and I've only configured on nic for each server. I'm trying to find out how I can troubleshoot this and test my network to find out where my issue lies. I know the wifi is slower, but it shouldn't be that slow. I just don't know where to start and I need to show evidence of the bottleneck to my physicians.

Thanks,

nimdatx
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kdearing
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Not sure what you mean when you say....
 ( You have GigaBit Switches but only 0,01 GB Fibre ... )

What about the physical server side? I have 5 dedicated servers for the EMR applications and each server I've only configured 1 nic each. Do you think that would be a contributer?

I'm trying to understand how data is sent/received from the users/server and if you can help me understand what I need to know to ensure I maximize performance on the physical and network infrustructure.
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It happens randomly within the EMR App. Users that are connected hardwire seem to not be affected as much. Wifi users see the performance issues more.

Now I'm migrating my current servers to a Network virtualization environment with a SAN. I hope this helps performance. I just don't quite understand how calculate/monitor network traffic from a users desktop/laptop to the server. I understand that I must check all devices inbetween and ensure I do not have any devices that may be over utlilized, however I'm interested to figure out how the data packets are processed from user to server and  from server to user. I kinda get OSI, but I'm trying to understand better.  
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Gugro

> Not sure what you mean when you say....
>  ( You have GigaBit Switches but only 0,01 GB Fibre ... )

What I was trying to say is:
If you have 10 clients connected to a GBit switch and each client transfers at a rate of 100 MBit/s your Switch will have no problem with it.
But as soon as you are trying to transfer this data between your HQ and Clinics it will exceed your fibres capacity.
So, I suppose that your fibre is connected directly to a port on your switch, you should setup a Monitoring tool which collects some statistic about the usage of the fibre line.
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