WD 3TB My Passport Ultra Portable External Hard Drive - USB 3.0 only getting 10 mb/s write speed

[Guy_44]

I was trying to relocation some of my video files (about 500gb , 2gb per file). when moving from y internal drive to my USB 2.0 external drive , I got around 35mb/s constant. but when trying to moving my WD 3TB USB 3.0 external drive, I was only getting 10mb/s .

I tried to uninstall USB3.0 driver on my desktop, tried enable write cache for my WD 3TB external drive. nothing will improve the write speed on it.

I did run crystal disk mark on USB 2.0 external drive and USB 3.0 external drive

USB 2.0 Read ~ 35 mb/s ; Write ~ 35 mb/s
USB 3.0 Read ~ 120 mb/s ; Write ~ 10 mb/s

Need some advise from experts here .

TIA

 

[Ralston18]

How are you relocating the files: drag and drop, video application software, some third party application?

Does the slowness occur when you try to relocate just one file or a small group of the video files?

Any fragmentation on the WD 2.5TB drive?

 

[Guy_44]

How are you relocating the files: drag and drop, video application software, some third party application?

Does the slowness occur when you try to relocate just one file or a small group of the video files?

Any fragmentation on the WD 2.5TB drive?

The files are mostly video ( about 2gb per file, total 500gb), I was simply doing copy and paste from Internal sata drive to external USB 3.0 drive via USB 3.0 port and cable.

I can confirm the port and cable are fine since i have no problem copy and paste from internal drive to my other external drive(SSD) via same port and cable.

Also can confirm there is 0% fragmentation on the drive.

When first start copying, it is moving at fast rate for the first 1gb of data ( showing as 100mb / second ) , then slow down eventually to 10 mb/s and stay that way for the remain data ( 20gb for testing purpose)

When doing the same test, copying from External USB 3.0 drive back to internal drive , I'm getting over 100 mb/s , the same 20 gb of data takes less than 3 minutes to finish copying.

 

[D_Know_WD]

Hi there Guy_44,

Sorry that you are facing some issues with your WD drive. 🙁
It may be a good idea to back up the data until you sort this out.
Have you tried to transfer a single, really big file? In case you haven't, you can try that.
Also, even though your other drive works just fine with the same cable, I think that it would be nice if you can try another one. Also, you can attach the drive to a different USB port.(the ones on the back of the cae are directly attached to the MOBO).

Some other things to try:
- Go to your MOBO's website and update USB drivers.
- Test your HDD with WD's Data Lifeguard Diagnostic tool(both short and extended versions): http://products.wdc.com/support/kb.ashx?id=NVmr5Q

Let me know how this goes,
D_Know_WD

 

[Guy_44]

Hi there Guy_44,

Sorry that you are facing some issues with your WD drive. 🙁
It may be a good idea to back up the data until you sort this out.
Have you tried to transfer a single, really big file? In case you haven't, you can try that.
Also, even though your other drive works just fine with the same cable, I think that it would be nice if you can try another one. Also, you can attach the drive to a different USB port.(the ones on the back of the cae are directly attached to the MOBO).

Some other things to try:
- Go to your MOBO's website and update USB drivers.
- Test your HDD with WD's Data Lifeguard Diagnostic tool(both short and extended versions): http://products.wdc.com/support/kb.ashx?id=NVmr5Q

Let me know how this goes,
D_Know_WD

I have tried the other options you mentioned , like plugging into different USB port (both back and forth , usb2 and usb3.0) , update mobo usb driver, but none of these will improve the transfer rate

 

[D_Know_WD]

Well, you can test the drive with WD's DLG tool and see if there is something wrong with it.
Have you tried transferring a really big file?(or just a single 2 GB file)

D_Know_WD

 

[Guy_44]

Well, you can test the drive with WD's DLG tool and see if there is something wrong with it.
Have you tried transferring a really big file?(or just a single 2 GB file)

D_Know_WD

SMART status= fail,

Re-allocated Sector count

 

[D_Know_WD]

Unfortunately, it seems that there are some bad sectors on the drive that were reallocated. 🙁
This can't really be fixed and they will eventually continue to appear until the drive fails.

You need to back up all the data stored on it.
In case the drive is under warranty, you can just contact the place you got it from or WD's Support and RMA it: http://products.wdc.com/support/kb.ashx?id=NwyC3i

D_Know_WD