Tremendous slow file copy over USB / LAN (2 MBytes / sec)

[philippe.requile]

Mede8er device: MED500X2
- Installed HDD: 2 TB Western digital WD20EARS (5400 rpm).
- Firmware upgraded from v1.0.3 to 2.0.3
Tests from 2 PC’s:
- Sony laptop VPCF1-3ME1 (USB3.0 port / 1000 Mbit LAN) Windows 7 64 bit
- PC with Asus P5K PRO motherboard;USB 2.0 ports;1000 Mbit LAN ; windows 7 home premium 32bit
Switch: 1000 Mbit Zyxel GS108B.

1) USB
When I copy 4 GB from my laptop with the blue USB3 cable, the transfer starts around 70 MByte/sec. Then the transfer speed gradually slows down. After a few minutes the average transfer speed is below 10 MB/sec, and at the end the speed is below 2 MB/sec.
I bought another USB 3.0 cable. Same problem.
What could be the problem?

Remark: the transfer starts around 70 MB/sec after a fresh restart of the MED500X2. When I cancel the transfer after a few minutes (when transfer slows down), and when I start a second copy without restarting the mede8er, the file transfer starts below 1MB/sec.

2) Network
File transfer over LAN from my PC to MED500X2 is a more constant, and higher than over USB, but still too slow (starts at 3,3 MB/sec; ends at 2,5 MB/sec; this should be 8 MB/sec according to your website)
The transfer speed between 2 PC’s over the same cables (I replace the mede8er with a laptop) is  > 20 MB/sec so there isn’t a network problem or PC problem.

I did these test with 2 PC’s.  Same problem on both PC’s.

[jer1956]

Are you saying this happended as a result of the firmware upgrade...or has it always been like this?

[philippe.requile]

It has always been like this. I hoped the upgrade would solve the speed problem.

[jer1956]

Did you check the drive name in medialibrary as requested on the 2.0.3 download page. Is is hdd: or c:?

[philippe.requile]

HDD it is. I formatted the harddisk twice with the mede8er: once with version 1.0.3, and once with version 2.0.3.

[philippe.requile]

No solution? Then I'll have to return the mede8er to the store.

[TomazO]

No solution? Then I'll have to return the mede8er to the store.

philippe.requile, try to disable DLNA DMR. This solved similar behaviour which you are describing on my side.
 
Regards, TomazO!!

[jer1956]

Is that tweak still working for you?

[AdrianH]

I just want to add something about the network copying that I experienced.

Over the weekend I backed up my vids (about 500GB) from the internal 2TB drive in my 500X2, to an external USB drive connected to my PC over a wired network.  I used Tereacopy to facilitate the copy and the first few hours it was running at around +- 6MB/s.  I left it running over night to find it had dropped to 2.8 MB/s the following morning.  I paused the copying process on the PC, rebooted the 500X2 and resumed the copy.  It was back up to 6.8MB/s.

I didn't know about the DLNA DMR setting that might influence the copy speed, so once the music jukebox update is released, I need to copy a good 200GB of music over from the PC to the internal drive, so I will test it then.

[philippe.requile]

I disabled DLNA DMR and rebooted the mede8er.
This didn't solve the problem.
I'll try another harddisk now.

[philippe.requile]

I took another harddisk (WD 320 GB 7200 rpm) and the problem is solved:  48 MB/sec over USB3; 6,8MB/sec over LAN.

Tomorrrow I'll put my 2TB in my PC and test the speed there.

[TomazO]

Is that tweak still working for you?

Yes, no problems of anykind since I disabled it. Will try this on just the latest FW, havent been at home a lot these days.