Solved

10GB switch - and increased speed

Posted on 2014-04-06
9
394 Views
Last Modified: 2014-05-07
Hi,

Hypothetical. I have traffic utilization of 1GB NIC at say 20% average- bursting to max of 40%

I replace with 10GB switch and NICs. - Will I see improved speed and performance at all?

Or will I just use 2% of 10GB and max 4% of 10GB on a burst?

Can someone please give technical answer. I know there are other benefits to 10GB in consolidation of number of NICs required in VM environment etc - I'm purely after an explanation or confirmation of what performance/speed gain I will get given my current utilization Thanks
0
Comment
Question by:philb19
9 Comments
 
LVL 10

Expert Comment

by:Korbus
ID: 39980921
Your math is correct, assuming no change in traffic volume (200MB avg, 400MB max), you will simply see 2% avg and 4% max of 10GB after upgrade.
0
 

Author Comment

by:philb19
ID: 39980924
ok thanks - so no performance gain whatsoever?
0
 
LVL 10

Expert Comment

by:Korbus
ID: 39980925
Well, It may be a mistake to assume constant traffic volume:  your computers can get and send responses faster-  thus they may generate MORE traffic per time unit.  Application specific, I guess.
0
 

Author Comment

by:philb19
ID: 39980935
"your computers can get and send responses faster- "

ok this is getting to my point - How do they do this? so I assume the 10GB is not just the size of the pipe. Its pushing data faster due to the 10GB chipsets? so faster processing on the NIC and switch?
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 10

Expert Comment

by:Korbus
ID: 39980949
A "response" is a number of bytes in length, lets say 1KB.
With a 1GB network this data can be transferred in 1 milli seconds. (check my math)
With a 10GB network this 1KB can be transferred 10x faster, 0.01 milliseconds.

Note: 1 milisecond is a lot of time for a CPU to process a reply

Hmm, is that clear at all?
0
 

Author Comment

by:philb19
ID: 39980962
ok thanks again. I have read online that 90% of SOHO business's run fine on 1GB full duplex LAN.

My issue is whether the network is "the bottlenecK' - And from my research with a small VLAN 20-30 PC 1GB full duplex - this is rarely the case.

The arguement from developers and DBA's is to get 10GB LAN. However I see only 30-40% utilization on 1GB - Now my assumption is that (we  do have Oracle)  the application layer - poor SQL coding is more than likely the cause of slow oracle business application performance rather than the LAN wire speed. - I'm trying to gauge whether 10GB will make any difference at all. I don't believe the clients are waiting for network - so what will 10GB give? though I could be wrong. - thoughts?
0
 
LVL 10

Accepted Solution

by:
Korbus earned 500 total points
ID: 39980966
I guess I would ask how many servers and clients you have.
I doubt the amount of traffic requested by/ sent from clients, as generated by users would be effected by a increase in network bandwidth.
However, multiple database severs, all working in a cluster (where they are waiting on each others response):  well, an increase in bandwidth there might very well help.  You CAN connected only severs together with a 10x network, to save on money and still help performance.
If you are running a single server, then chasing network stuff does indeed seem silly.

In general, I would suggest making sure your database configuration is optimized just-so for the application, before looking at network.
0
 
LVL 78

Expert Comment

by:David Johnson, CD, MVP
ID: 39980971
you will see an improvement only if the network speed is your bottleneck.  Perhaps your bottleneck is somewhere else.

For instance, I noticed a huge improvement by putting my sql server data files, log files, temp files all on different spindles (physical drives), the log files went to an SSD, this resulted in a 400% increase on my System Center Server
0
 
LVL 57

Expert Comment

by:giltjr
ID: 39982048
I agree with David Johnson, CD, you will only see an improvement if the network is your bottle neck.

What is the time period you are seeing 30-40% network utilization?  Is this an 8 hour avg.?

Remember at any specific point in time a single network connection is either 100% utilized or 0% utilized.  As data is flowing over the wire it is traveling at 100% of the network connection maximum speed.  

An avg. tells you what percentage of the time the network was 100% utilized.    So network connection that is avg. 30-40% utilization is 100% utilized 30-40% of the time and zero% utilized 60-70% of the time.
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Even if you have implemented a Mobile Device Management solution company wide, it is a good idea to make sure you are taking into account all of the major risks to your electronic protected health information (ePHI).
I had an issue with InstallShield not being able to use Computer Browser service on Windows Server 2012. Here is the solution I found.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

919 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now