Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Intranet connection speeds


  • Please log in to reply
5 replies to this topic

#1 Reddoug

Reddoug

  • Members
  • 115 posts
  • OFFLINE
  •  
  • Local time:09:46 PM

Posted 23 February 2011 - 07:08 PM

Hi All

When I transfer movies from one computer to external hard drive through a router is shows a transfer rate of 1.3mbs. All computers and router have 10/100/1000mbs nic ports. I understand that data has to be loaded from the HD to get out of the computer and written to the HD in the external drive. Just thought it would transfer faster than that. Computer is a dual core. Just trying to better understand how it all works. Is there anyway to speed it up? Would a program like Wireshark give a good idea what is going on?

Thanks, Doug

BC AdBot (Login to Remove)

 


#2 Broni

Broni

    The Coolest BC Computer


  • BC Advisor
  • 42,699 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Daly City, CA
  • Local time:07:46 PM

Posted 23 February 2011 - 11:07 PM

You're mixing up two different transfer types.
NIC cards transfer network data (internet data in and out).
Normally , an external drive is connected through USB port, so your concern is USB data transfer rate.
Quoting: http://en.wikipedia.org/wiki/Universal_Serial_Bus#Transfer_rates

The theoretical maximum data rate in USB 2.0 is 480 Mbit/s (60 MB/s)

but...

the actual throughput of USB 2.0 high bandwidth attained with a hard drive tested on [...] Windows, the highest speed observed was 33 MiB/s, or 55% of the theoretical max.
[...]
Typical high bandwidth USB devices operate at lower data rates, often about 3 MB/s overall


My Website

p4433470.gif

My help doesn't cost a penny, but if you'd like to consider a donation, click p22001735.gif


 


#3 Reddoug

Reddoug
  • Topic Starter

  • Members
  • 115 posts
  • OFFLINE
  •  
  • Local time:09:46 PM

Posted 23 February 2011 - 11:32 PM

Hi
The external HD is connected by a cat5 cable in this setup to the router so other computers can access the movies. The data is not going out to the net.

Thanks, Doug

#4 Broni

Broni

    The Coolest BC Computer


  • BC Advisor
  • 42,699 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Daly City, CA
  • Local time:07:46 PM

Posted 23 February 2011 - 11:42 PM

In that case you're limited by HDD transfer rate, which is, most likely, no more than 30MB/s.
Considering some overhead, like AV program interferring (for instance), that would go down even more.

My Website

p4433470.gif

My help doesn't cost a penny, but if you'd like to consider a donation, click p22001735.gif


 


#5 fred3

fred3

  • Members
  • 51 posts
  • OFFLINE
  •  
  • Local time:07:46 PM

Posted 24 February 2011 - 01:59 AM

All computers and router have 10/100/1000mbs nic ports.


But what speed are they running at actually? Probably not a likely reason for slowness in this case but if one of them is "10"... then. And, how do you tell on the external hard drive's interface?

#6 Reddoug

Reddoug
  • Topic Starter

  • Members
  • 115 posts
  • OFFLINE
  •  
  • Local time:09:46 PM

Posted 24 February 2011 - 04:36 PM

Hi

What kinds of tools can I use to check transfer speeds and read/write speeds? How can I tell what speeds to nic's are running at?

Thanks for the reply's, Doug




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users