SLOW transfer speeds over LAN gigabit network

ryanvox

Honorable
Aug 13, 2016
39
0
10,540
I am transferring large gb files over my network from my laptop to a PC i have converted into a media server. It is slow at about 90Mbps (12MB/s). I am ripping my blu ray movies on my laptop (only blu ray drive I have) and then transferring it drag and drop style over to the media server. Both computers have gigabit nic cards. Both set to Full Duplex 1Gbps. Everything is hard wired in with gigabit switches and cat 5e cable.

My network comes in to a modem to a router (Netgear WNDR3800CH which is also a gigabit router if I am not mistaken) from there it goes to a Switch (Netgear Gs608NaV4). Attached to that switch is my media server. From that switch I go to another switch in another part of my house (Cisco 8 Port SG110D08NA) and connected to that is my laptop gaming devices, smart tv, etc. .

As I said before I am generally getting 12MB/s. I am not sure why this is. I have tried checking cables and those are fine. I tried changing out switches. I changed out my Netgear GS608 with a GS605. For a little while (maybe 2-3 test transfers) I will get 75 MB/s. Then it will slowly drop down and eventually get back down to the 20 MB/s range. Then when I do the test again it will only be in the 12MB/s range. Then I change out the switch again and same thing. Works for a few times and then goes back to being slow. both
computers are running windows 7. Thanks

*UPDATE*
I just did an IPERF test and my network speeds were 971 Mbps (121 MB/s). So possibly the bottleneck would probably be my hard drives? I have two 6tb drives. A WD Red 6TB 5400 RPM drive and a WD Red 6tb 7200RPM drive. I have both drives running RAID. obviously the slower drive is going to be the main when it comes to power and running. But still I would think this would give me in the range of 50MB/s - 70MB/s. Not 12MB/s.
 
Solution
If your laptop has enough RAM you could try creating a RAM disk to hold the files. Then the copy would not be limited by the HDD.

I use ImDisk and allocate 8GB for TMP. I find that most of the files I download or copy just get deleted after I install or watch them. No need to write them to the SSD.

Is it possible that ethernet connection is flaky and falling back to 100Mb? You should query the network status after the copy to see if both still say 1Gb.

010010

Reputable
Jun 29, 2016
631
8
5,365


The disk might be the limiting factor. you can't send more data/second over ethernet than the disk can support.
 

ryanvox

Honorable
Aug 13, 2016
39
0
10,540
The disk might be the limiting factor. you can't send more data/second over ethernet than the disk can support.[/quotemsg]


That was my next thought but you think I would be getting more than 12MB/s. I just did an IPERF test and my network was around 120MB/s. So it is probably the the hard drive. I would figure that would give me 50MB/s - 70MB/s. Not 12.
 

010010

Reputable
Jun 29, 2016
631
8
5,365



That was my next thought but you think I would be getting more than 12MB/s. I just did an IPERF test and my network was around 120MB/s. So it is probably the the hard drive. I would figure that would give me 50MB/s - 70MB/s. Not 12. [/quotemsg]

if it is only transferring at 12MB/s then having a > 12MB/s connection doesn't change all that much. What HDD is it?
 

ryanvox

Honorable
Aug 13, 2016
39
0
10,540


if it is only transferring at 12MB/s then having a > 12MB/s connection doesn't change all that much. What HDD is it?[/quotemsg]

I have two 6tb drives. A WD Red 6TB 5400 RPM drive and a WD Red 6tb 7200RPM drive. Drives are being ran in RAID 1
 

blinding

Distinguished
Jul 14, 2011
38
0
18,560
If your laptop has enough RAM you could try creating a RAM disk to hold the files. Then the copy would not be limited by the HDD.

I use ImDisk and allocate 8GB for TMP. I find that most of the files I download or copy just get deleted after I install or watch them. No need to write them to the SSD.

Is it possible that ethernet connection is flaky and falling back to 100Mb? You should query the network status after the copy to see if both still say 1Gb.
 
Solution