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[Clayton]

I have a PC with 1GB LAN also 1GB LAN Switch which my NAS is connected to, but transfer speeds are very poor, around 6.85 MB/second.
Most of the files I am transferring are around 350MB in AVI format.
Anyone having the same problems or have made it go faster?
cheers

[JavaLawyer]

By chance, is your PC running Windows 7? I've read about (and personally experienced) an issue where transfer speeds between the DNS-343 and Windows 7 PCs intermittently drops to the 4 to 6 mbps range. Rebooting the PC restores the transfer speeds (10-15 mbps for 100 mbps LAN) until the issue occurs next time. For me, this issue recurs once every few weeks. I have no transfer speed issues on non-Windows 7 boxes.

If you are using a Windows 7 PC, try testing transfer speeds on a non-Windows 7 box on the same network port to validate the issue.

[Clayton]

Yes, I am running Windows 7 x64, I'll try and find a XP machine and do some transferring

[JavaLawyer]

Yes, I am running Windows 7 x64, I'll try and find a XP machine and do some transferring

I suspect your transfer rates will increase if you switch to a different OS. Post your results after you test throughput on another box.

[Clayton]

I have done one test today but not from a XP machine.
I'm transferring 246GB of files from my NAS to a USB drive connected to my Windows 7 machine and the transfer speeds are around 10.5MB/second while also transferring 90GB of movies to my NAS from PC, not sure what the speed is with these files as I am using KLS Backup software to sync.
what should be a acceptable speed in MB/second for GB LAN?

[JavaLawyer]

There's a bandwidth monitor application I've been using for the past 5+ years called "DU Meter" (www.dumeter.com). You can download a 30 day trial.  The app will provide you with the instantaneous and average throughput up/down and cumulative.

I can't speak speak for GB LAN, but my 100 MB LAN throughput falls between 10 to 15 mbps. Your measured throughput on a GB LAN will be limited by the HDDs, overhead from RAID 5 (RAID 5 slows down transfer speeds), and limitations of the DNS-343 itself.

[skrupka]

Nice program.  This is my results using the same program on a GBE connection.

201.00 Mbps    0.20 Gbps
25.13 MB/s

This is uploading to the NAS from my PC and Windows 7 x64 pro machine with a 7200.11 rpm drive.  No RAID.

[skrupka]

Going the other way is quicker :

   301.00 Mbps    0.30 Gbps
   37.63 MB/s    0.04 GB/s

[Clayton]

Hells Bells, that's fast, I'll run a test later, my configuration on PC is 3TB SATA3 7200.11 connected to a Highpoint Rocket Raid 620 SATA3 6GB's pci-e card to NAS 4 x 2TB 5900 RPM drives in RAID5

[Clayton]

Skrupka, I think you have your settings wrong in DU Meter, try changing the data transfer rate unit settings in options to Bytes per Second (kB/sec) then test again, should be around 5-6 MB/second.
I'm getting the same readings even transferring from a XP machine with GB LAN, so it has to with the NAS.
no Major, but initial backup of 1.8TB is 3-4 days, I had to do this twice becuase of a RAID 5 rebuilding issue after updating to firmware 1.05b01

[skrupka]

I still get the same results.  It doesn't matter what measurement is used.   i.e inches to centimeters ....  your setup is not giving you correct speeds.  I'm also using Jumbo Frame support 9000k if that helps.   it only takes a few seconds to copy a 1 gig file.

[skrupka]

http://postimage.org/image/1dmnr1mw4/

Here is a screenshot.

[Clayton]

ok, my bad, however I uploading to the NAS at around 4.5 MB/s, jumbo frames and 1000 is set in the NAS, must be some sort of limitations with a RAID configuration, started a 1.00TB folder tansfer yesterday morning at 5am and still have 580GB left to transfer, 28 hours later.

[JavaLawyer]

ok, my bad, however I uploading to the NAS at around 4.5 MB/s, jumbo frames and 1000 is set in the NAS, must be some sort of limitations with a RAID configuration, started a 1.00TB folder tansfer yesterday morning at 5am and still have 580GB left to transfer, 28 hours later.

On a 100 MB LAN, you should be seeing throughput somewhere in the neighborhood of 10-15 MB/s, and for a GB LAN, the throughput should be substantially greater. Something is amiss.

[Clayton]

hmmm, what I wonder?