poor file transfer

[snapmit]

I have a win7 machine transfering about 800meg of files to a win home server computer. It started file transfere at about 1.5meg sec after a hour it is down to a pathetic 190kb. This always seems to be a problem . I am using a 1gig network and cards so I expect way better performance then this. I download off the interenet faster then this. Is this a common problem and what sort of things can I do help this out.
thank you

 

[zigzag3143]

I have a win7 machine transfering about 800meg of files to a win home server computer. It started file transfere at about 1.5meg sec after a hour it is down to a pathetic 190kb. This always seems to be a problem . I am using a 1gig network and cards so I expect way better performance then this. I download off the interenet faster then this. Is this a common problem and what sort of things can I do help this out.
thank you

What kind of network wifi, or cabled? Are you using "homegroup" was it always a problem, or did this just start?


Ken

 

[WindowsStar]

Are you using a good Gigabit switch, meaning over $400 US? Are you using all CAT5e, CAT6 or CAT7 cables? If not then you will get a burst speed and then settle down to what the switch and your cabling can handle.

 

[JonM33]

I have a win7 machine transfering about 800meg of files to a win home server computer. It started file transfere at about 1.5meg sec after a hour it is down to a pathetic 190kb. This always seems to be a problem . I am using a 1gig network and cards so I expect way better performance then this. I download off the interenet faster then this. Is this a common problem and what sort of things can I do help this out.
thank you

What type of WHS is it? Some cheaper servers use low end processors and very little RAM and cannot handle larger numbers of file transfers. Something like an HP MediaSmart EX490 with a 2.2GHz Celeron and 2GB RAM will do much better with file transfers.

 

[zzz2496]

What network switch do you use? What's the "connected" speed say? 100Mbps? 1Gbps?

zzz2496

 

[snapmit]

further information

The server is a computer running 2 meg memory,2 core 3mghz athlon processor(I will be upgrading this to a 4 core for transcoding,1gig onboard lan, 23 teribyte storage.All the cables are cat5e and cat6.The network switches are dlink 1gig 8 port.

 

[WindowsStar]

The server is a computer running 2 meg memory,2 core 3mghz athlon processor(I will be upgrading this to a 4 core for transcoding,1gig onboard lan, 23 teribyte storage.All the cables are cat5e and cat6.The network switches are dlink 1gig 8 port.

I would start by replacing the switch D-Link is for home use and not for major data transfers.

Here is a good switch that will give you better data transfer rates:
CISCO SLM2024 24-port 10/100/1000 Gigabit Smart Switch with 2 combo SFPs : Networking: Enterprise Class | Dell

However as noted above if your server is NOT fast enough to handle the requests or the sustained data rate the switch will not make much difference.

 

[snapmit]

Well I have a wireless card in my server and aparently it was using this connection rather then the wired connection. Disabled it and it is much better now. But now have new problem. Here is the example. I have a dvd rip with 5 1gig vob files. 3 of the 1meg vob will transfere at a rate of 75-80mb/sec. The 2 remaining 1gig vob files load at a terrible 1.9mb/sec. What causes this sort of problem?

 

[fseal]

Well one piece of advice is to turn off "Remote Differential Compression".

Control Panel->Turn Windows Features On or Off

Uncheck Remote Differential Compression and see if that helps

 

[logicearth]

Well one piece of advice is to turn off "Remote Differential Compression".

Control Panel->Turn Windows Features On or Off

Uncheck Remote Differential Compression and see if that helps

It won't help because its not being used in this case.
Remote Differential Compression is only used with established offline files and DFS (Distributed File System).
Furthermore, it helps increase speed not reduce it. By only sending the bites that are changed.

 

[logicearth]

Well I have a wireless card in my server and aparently it was using this connection rather then the wired connection. Disabled it and it is much better now. But now have new problem. Here is the example. I have a dvd rip with 5 1gig vob files. 3 of the 1meg vob will transfere at a rate of 75-80mb/sec. The 2 remaining 1gig vob files load at a terrible 1.9mb/sec. What causes this sort of problem?

It deepends on how fast the Hard Drives are (and fragmented), how much bandwidth is available how many bits can be packed into a single packet. There are a lot of variables to consider.

 

[fseal]

Well one piece of advice is to turn off "Remote Differential Compression".

Control Panel->Turn Windows Features On or Off

Uncheck Remote Differential Compression and see if that helps

It won't help because its not being used in this case.
Remote Differential Compression is only used with established offline files and DFS (Distributed File System).
Furthermore, it helps increase speed not reduce it. By only sending the bites that are changed.

Well that's how it's supposed to work anyway...

Slow Network File Copy issues in Windows 7 caused by Remote Differential Compression | Windows Reference

Can also google "Slow windows 7 network file copy". There is a hot fix and somepeople reccomend turning off TCP auto-tuning as well.

 

[logicearth]

Well that's how it's supposed to work anyway...

Slow Network File Copy issues in Windows 7 caused by Remote Differential Compression | Windows Reference

Can also google "Slow windows 7 network file copy". There is a hot fix and somepeople reccomend turning off TCP auto-tuning as well.

Which is completely incorrect. The Remote Differential Compression is not the cause, nor turning it off actually did anything.

Debunking Myths about Remote Differential Compression and System Performance - The Storage Team at Microsoft - File Cabinet Blog - Site Home - TechNet Blogs