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Old 16.04.2014, 18:04
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WD Cloud network hard disk extremly slow

I just bought a WD 3TB Cloud network hard disk.

It is connected to the modem through an ethernet cable.
My computer is connected to the modem through an ethernet cable.

I started copying files and noticed it was slow, but didn't look closer.

Then again, copying my home dir (with a lot of files) I noticed it took between 30 -50 minutes (not sure anymore) an hour to copy a little more than 100MB (MEGA BYTES, not giga or tera).
The speed was in kb/sec. At some point it went up again.
This doesn't make sense at all to me.

What could be wrong? The hardware?
I am ready to bring it back!

One more thing, I am using linux, so I didn't go through any software installation. But this should really not be necessary - as the saleperson told me.

What are your thoughts on this?
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Old 16.04.2014, 19:14
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Re: WD Cloud network hard disk extremly slow

If you had thousands upon thousands of tiny files that made up that 100MB then the copying would be a fair bit slower than copying a couple of large files - that said it does appear to be somewhat slow.

How old is your modem? If it's an older model then the inbuilt switch may only be 100Mb/s, and not 1Gb/s - that'll slow things down a lot.

One test would be to connect the HD directly to your computer via Ethernet (modern devices will auto negotiate crossover connections) and see if things speed up significantly

If they do then my advice would be to buy an 8 port gigabit switch and connect computer, HD, and modem to that switch - this is how I do it at home as my modem is ancient and only has a 100Mb switch.
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Old 16.04.2014, 21:46
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Re: WD Cloud network hard disk extremly slow

Thank you slaphead for your answer.

I did connect the hard disk directly to my computer and the max (constant) copy speed is 12MB/s. Does that seems right to you?

If this is the speed I get with a direct connection over an ethernet cable, I am not sure a gigabit switch would help. What do you think?

Right now, the hard disk is back to the modem and the copying speed is 6.5 MB which is faster than the xx kb had had before ... but 45 min to copy 18.3 GB ... I'll be backing up all night and more at this speed ...

The modem is 4 years old, from swisscom. Maybe I can convince them to send me a new one for free ...
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Old 16.04.2014, 22:46
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Re: WD Cloud network hard disk extremly slow

You've been had ..

Sorry only messing its a phrase I've learn on here and it seems to pass to nearly every question.

12mbp/s sounds like USB 1.0 which is quite slow. It seems for the spec of your drive it should be able to do usb 3.0 . To do this the device it connects to needs to have usb 3.0 even usb 2.0 give a large jump in speed

Try connecting it directly to a usb port on your linux machine do you have a usb 3.0 port or usb 2.0 on it ?
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Old 16.04.2014, 22:57
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Re: WD Cloud network hard disk extremly slow

As I wrote, it is connected through an Ethernet cable, not a USB cable, which should be way faster than any USB.

If I wanted to connect it to a USB connector I would need a male to male cable, which I don't have.
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Old 16.04.2014, 23:44
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Re: WD Cloud network hard disk extremly slow

Do you have a crossover cable ? If so connect the USB and the drive and configure the network cards to speak to each other using static IPv4 addreasses

http://askubuntu.com/questions/22835...thout-a-router

You mentioned it was connected via modem ? What type of modem is it ?
What type of cables are you using ?

Check the setting on the network interface of the USB drive.
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Old 16.04.2014, 23:48
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Re: WD Cloud network hard disk extremly slow

Post a link to the specs of the Hard disk as well
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Old 17.04.2014, 00:18
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Re: WD Cloud network hard disk extremly slow

Adding to what Slaphead wrote, the WD website actually states, with regard to transferring large files to the HD:

Quote:
Note: Maximum performance with a 10/100 BaseT NIC, switch, or router in the data path is about 10 MB's or less. Cat 6 Ethernet cables are prefered (sic) for long connections.
From here
Where there's other helpful device but basically they're suggesting to use a gigabit ethernet switch (assuming your PC also has a gigabit ethernet adaptor, too).
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Old 17.04.2014, 03:50
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Re: WD Cloud network hard disk extremly slow

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I did connect the hard disk directly to my computer and the max (constant) copy speed is 12MB/s. Does that seems right to you?

If this is the speed I get with a direct connection over an ethernet cable, I am not sure a gigabit switch would help. What do you think?
12MB/s is exactly what you'd expect over a saturated 100Mb/s connection; so first guess would be that you're not running at 1Gb/s (even with the direct connection).

Run the command 'ethtool eth0' on your Linux box (you may need to install it - apt-get or yum depending on Linux flavour) while you're connected to the drive; it'll show the current speed.

Edit: I just noticed 'mii-tool' works on a default Debian install - try that first.

Last edited by speakeron; 17.04.2014 at 04:12.
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Old 17.04.2014, 12:06
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Re: WD Cloud network hard disk extremly slow

A few things to help people help you:
  • Is your router Gigabit capable?
  • Is your computer Gigabit capable?
  • What is the exact model of WD drive you bought?
As speakeron said, It sounds as though either your computer is not gigabit capable or the possibly drive isnt, given the fact you connected it directly and got 12 MBytes/s - that's equivalent to 100Mbit/s. If you were running at Gigabit speeds you'd expect higher as 1000Mbit/s is equivalent to 125MByte/s.
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  #11  
Old 18.04.2014, 22:17
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Re: WD Cloud network hard disk extremly slow

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Post a link to the specs of the Hard disk as well
http://www.wdc.com/wdproducts/librar...178-705970.pdf
and
http://www.wdc.com/en/products/products.aspx?id=1140

I don't have a crossover cable, so I can't try that.

The modem is a Motorola Analog WIAD type: 0xB9 - whatever this means, can't find any specs for this, 4 years old. But I assume this is not Gigabit capable.
Will check with Swisscom next week.

Quote:
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Where there's other helpful device but basically they're suggesting to use a gigabit ethernet switch (assuming your PC also has a gigabit ethernet adaptor, too).
Thank you, then I will need to get one.

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Run the command 'ethtool eth0' on your Linux box ; it'll show the current speed.
correct:
eth0: negotiated 100baseTx-FD, link ok

So, I assume the router is not gigabit capable and that is the "root" of the problem.
But I should still be able to get 10MB/s - which I get through direct connection with an Ethernet cable.

After playing with the options, I managed to mount the device manually (instead of using a network protocol (smb or afp) and THAT increased the speed to 10MB/s!
Maybe the geeks here will understand why this is.

Anyway, thank you to all of you who -unlike me - pined the problem right on!
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Old 19.04.2014, 05:47
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Re: WD Cloud network hard disk extremly slow

Ok, we're nearly there. Do this now:

1. In the output of ethtool there's a section called 'Supported link modes'. Is there a '1000baseT' somewhere in there? (If in doubt, just copy the output here and I'll take a look).

2. If there's no '1000baseT', you can stop since your PC doesn't have a 1Gb NIC.

3. Connect the hard disk directly to the PC with the ethernet cable (no need for a crossover cable - most NICs has been able to autodetect the cable type for more than ten years using Auto-MDIX) and run 'mii-tool --verbose'. (mii-tool is an older version of ethtool but here it has the advantage that it can show the capabilities of the link partner). Copy the output here. Then plug in the switch and do the same.
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Old 19.04.2014, 21:10
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Re: WD Cloud network hard disk extremly slow

ok, so here the output, with the WD Cloud being connected to the modem:

sudo mii-tool --verbose eth0
eth0: negotiated 100baseTx-FD, link ok
product info: vendor 00:07:32, model 17 rev 2
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD


so YES!! we have a 1000baseT-HD and 1000baseT-FD!

Well now the computer doesn't recognize the hard disk when connected directly ...

Anyway, the conclusion is that it will run like a charm, once I get a Gigabit Modem, correct?
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Old 21.04.2014, 15:50
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Re: WD Cloud network hard disk extremly slow

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...and THAT increased the speed to 10MB/s!
Maybe the geeks here will understand why this is.
If you know your acronyms, a MB is a megabyte
so 10 MB/s = 10 Megabytes per second, which is 80 megabits per second (80 Mbps)

If you are using a 100bT connection, 80 Mbps throughput is about the maximum you can achieve due to the IP overhead.
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Old 03.11.2016, 20:51
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Re: WD Cloud network hard disk extremly slow

My WD Elements 1.5 TB External Drive for PC is super slow.
This is the second or third time I use this hard disk and is super slow.
I left it overnight to copy some files.
Is it time for a new one? Any quick fix?
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Old 03.11.2016, 20:57
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Re: WD Cloud network hard disk extremly slow

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My WD Elements 1.5 TB External Drive for PC is super slow.
This is the second or third time I use this hard disk and is super slow.
I left it overnight to copy some files.
Is it time for a new one? Any quick fix?
USB connection?

Some of them do that occaisionally.

Moving the data to something else, then reformatting it, then putting the data sometimes helps, but by the time you buy another disc to move the data to...

Anything in eventlog about disk writes? (they will usually fill up with disk not ready warnings or similar)
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Old 03.11.2016, 21:02
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Re: WD Cloud network hard disk extremly slow

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USB connection?

Some of them do that occaisionally.

Moving the data to something else, then reformatting it, then putting the data sometimes helps, but by the time you buy another disc to move the data to...

Anything in eventlog about disk writes? (they will usually fill up with disk not ready warnings or similar)
Yes, USB connection.
I will say will need 1 to 2 weeks to transfer data to another disk.
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Old 03.11.2016, 21:09
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Re: WD Cloud network hard disk extremly slow

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Yes, USB connection.
I will say will need 1 to 2 weeks to transfer data to another disk.
Get a NAS. Even a cheap 2 disk one is pretty good for backups and such.
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Old 03.11.2016, 21:23
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Re: WD Cloud network hard disk extremly slow

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Get a NAS. Even a cheap 2 disk one is pretty good for backups and such.
Thanks JagWaugh.

Will look into.
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Old 03.11.2016, 21:54
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Re: WD Cloud network hard disk extremly slow

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Get a NAS. Even a cheap 2 disk one is pretty good for backups and such.
I was think about a NAS but there is a question of a backup anyway: drives powered up/spinning long time - shorter life, risk of an electric surge killing all the drives at once, a virus wiping or encrypting them and most likely a theft.
I've ended up with external disk drives and alway keep one of them at another location.
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