<div>
test if it can be used on another PC<br />
try with other cables<br />
if that does not help - try running the WD diag : &nbsp;<a href="http://support.wdc.com/product/download.asp?groupid=904&lang=en" rel="ugc">http://support.wdc.com/product/download.asp?groupid=904&lang=en</a>
</div>


test if it can be used on another PC
try with other cables
if that does not help - try running the WD diag :  http://support.wdc.com/product/download.asp?groupid=904&lang=en [http://support.wdc.com/product/download.asp?groupid=904&lang=en]

<div>
Maybe the disk inside the NAS has failed. NAS usually have a web interface from which you can configure them and run tests. Use that interface to check it's status. You could also check whether a firmware upgrade could help.<br />
<br />
If none of that helps, it is likely the NAS or disk is bad. If that is the case and you still have warranty, return it for a warranty replacement.
</div>


Maybe the disk inside the NAS has failed. NAS usually have a web interface from which you can configure them and run tests. Use that interface to check it's status. You could also check whether a firmware upgrade could help.

If none of that helps, it is likely the NAS or disk is bad. If that is the case and you still have warranty, return it for a warranty replacement.

<div>
This is being accessed wirelessly, not connected directly to any PC. &nbsp;My interest is in accessing the data, and to avoid returning it with data to the manufacturer.
</div>


This is being accessed wirelessly, not connected directly to any PC.  My interest is in accessing the data, and to avoid returning it with data to the manufacturer.

<div>
Then you'd have to remove the disk from the NAS, which voids the warranty...<br />
<br />
Reputed manufacturers like WD can be trusted to keep any data they should find confidential.
</div>


Then you'd have to remove the disk from the NAS, which voids the warranty...

Reputed manufacturers like WD can be trusted to keep any data they should find confidential.

<div>
did hyou run the diag? &nbsp;it can help fixing the problem
</div>


did hyou run the diag?  it can help fixing the problem

<div>
It's a NAS. You can't run diags on a NAS, unless it's built-in OS has something included for diagnosis. But that will usually just be SMART readouts you get there.
</div>


It's a NAS. You can't run diags on a NAS, unless it's built-in OS has something included for diagnosis. But that will usually just be SMART readouts you get there.

<div>
in the site i posted, you can select their product - and the diag for it
</div>


in the site i posted, you can select their product - and the diag for it

<div>
On that link there is no diagnostic for it, just a utility that helps you manage it, firmware etc.
</div>


On that link there is no diagnostic for it, just a utility that helps you manage it, firmware etc.

<div>
it seems you are correct rindi &nbsp;-i did not read all on that page<br />
and assuming &nbsp;is the worst habit on the internet<br />
sorry for that
</div>


it seems you are correct rindi  -i did not read all on that page
and assuming  is the worst habit on the internet
sorry for that

<div>
You should strongly consider copying the data off of there and reformatting the array, if not sending it back for replacement. &nbsp;You're telling us that its reporting incorrect information about space; sounds like the config is damaged or corrupted. &nbsp;Which means its safe to assume its unstable.<br />
<br />
Im in the middle of a 6 drive recovery process myself and you dont wanna be here with me. &nbsp;Trust me!
</div>


You should strongly consider copying the data off of there and reformatting the array, if not sending it back for replacement.  You're telling us that its reporting incorrect information about space; sounds like the config is damaged or corrupted.  Which means its safe to assume its unstable.

Im in the middle of a 6 drive recovery process myself and you dont wanna be here with me.  Trust me!

<div>
<div class="content wysiwyg-content">
2 TB MyCloud Drive<br />
Error message 'Data Volume Failed to Mount'<br />
Error Code 0004<br />
<br />
How to recovery data from this drive?
</div>
</div>


2 TB MyCloud Drive
Error message 'Data Volume Failed to Mount'
Error Code 0004

How to recovery data from this drive?

How can I recover from a Data Volume Failed to Mount message?

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.

Storage Hardware

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

Disaster Recovery is the planning for and creation of policies and procedures related to the resumption or continuation of an organization's functions following a catastrophic event. The term is most frequently used in relation to failure of networks, but DR preparations also include other business systems and personnel considerations.