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Empty Drive with 8GB used in Google Drive?


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#1 rbutler81

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Posted 16 February 2017 - 03:49 PM

Hi guys, I'm trying to understand something.

I created a 10TB CloudDrive in Google Drive and mounted it to my computer.

I haven't actually copied anything to this drive yet, and on my PC it shows 0 bytes used with the full drive available.

However, when I log into Google Drive and have a look at the folder that was created for this drive, it says it's occupying 8GB.

I looked in the folder, obviously it's just a bunch of 10MB chunk files... but why? What's in these files?

Sorry if this has been answered before, I did a quick search of the forums but didn't find anything.

 

Thanks,

R



#2 Christopher (Drashna)

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Posted 19 February 2017 - 02:42 AM

Just because there is no usage on the drive in Windows doesn't mean that there isn't data on it.  

 

Since we're storing the raw disk data on the provider, this will pretty much never match perfectly.  

 

Stuff like the partition information is stored on the disk, and this does get uploaded.

 

Additionally, if you've added files and deleted them, it will cause this.  When you delete a file, NTFS doesn't actually scrub the data, it just stops pointing to it. So, the actual data remains on the drive, until it's overwritten.  This is actually how recovery software works (it scans for, reads and attempts to recover this data). 


Christopher Courtney

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Lots of "Other" data on your pool? Read about what it is here.


#3 rbutler81

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Posted 19 February 2017 - 02:49 AM

Oh ok, thanks - that makes sense.
I didn't know how low-level your software actually works at.



#4 Christopher (Drashna)

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Posted 19 February 2017 - 03:26 AM

You're very welcome.

 

And yeah, we emulate a physical disk at a fairly (well, very) low level.  That means that things like CHKDSK work on the CloudDrive disk, as does data recovery. 


Christopher Courtney

aka "Drashna"

Microsoft MVP for Windows Home Server 2009-2012

Lead Moderator for We Got Served

Moderator for Home Server Show

 

This is my server

 

Lots of "Other" data on your pool? Read about what it is here.





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