1TB HDD missing 60gb

[Swanbumps]

Today i bought a new WD blue 1TB 2.5" HDD and I had a panic when I forgot to allocate it. Though it only has 931GB as shown in the picture below. (Don't mind the name, I couldn't think of a name). I know that drives lose space but I thought this was a little bit excessive. Let me know if I'm being greedy and demand too much.

[Anghammarad]

6 minutes ago, Swanbumps said:

Today i bought a new WD blue 1TB 2.5" HDD and I had a panic when I forgot to allocate it. Though it only has 931GB as shown in the picture below. (Don't mind the name, I couldn't think of a name). I know that drives lose space but I thought this was a little bit excessive. Let me know if I'm being greedy and demand too much.

This is completely normal...

 

my 2tb only has 1.81 tb after formatting 

[Swanbumps]

1 minute ago, Anghammarad said:

This is completely normal...

 

my 2tb only has 1.81 tb after formatting 

oh so I'm just paranoid

[Jurrunio]

That's the limitation of formatting. Your disk does have 1TB of physical capacity, but you will only get 931GB of storage space because of data used for formatting.

[mariushm]

HDD manufacturers use powers of 1000 to calculate sizes. 

 

For them,

* 1 KB is 1000 bytes

* 1 MB is 1000 KB = 1.000.000 bytes

* 1 GB is 1000 MB = 1.000.000.000 bytes

* 1 TB is 1000 GB =  1.000.000.000.000 bytes

 

Operating system works with multiples of 1024 instead of 1000, so 1 GB actually means 1 GiB (for 1 binary GB) :

 

* 1 KiB = 1024 bytes

* 1 MiB = 1024 x 1024 bytes

* 1 GiB = 1024 x  1024 x 1024 bytes

* 1 TiB = 1024 x 1024 x  1024 x 1024 bytes

 

Windows shows GB instead of GiB because GiB is only a recent standard and most people are already used and aware of the different unit value for file sizes.

 

So if you take 1.000.000.000.000 and divide it by 1024 you get :

 

* 1.000.000.000.000 bytes  / 1024 = 976,562,500  KiB  / 1024 = 953,674.31 MiB / 1024 =  931.32 GiB

 

@Jurrunio is mostly wrong, mostly in the sense that as with any file system, there is some portion of this total amount of disk space reserved to hold information about the files and folders (metadata, file name, in which folder it belongs, where on hard drive file starts, when it was last modified, when it was last accessed, which user created it and so on) you have on the disk, but when Windows Explorer shows you that 931 GB value, it's the correct one, including the area reserved by the file system to store "metadata" there.

It's just important to remember because if you're actually going to try to create a single file and write 1.000.000.000.000 bytes in it, you won't be able to do it, because probably around 20-50 MB of disk space will be already used by the file system to hold information about the file and other files you may have on the hard drive.

 

[Anghammarad]

1 minute ago, Jurrunio said:

That's the limitation of formatting. Your disk does have 1TB of physical capacity, but you will only get 931GB of storage space because of data used for formatting.

And the drive capacity by vendor is 1000 gb advertised as 1 tb for example, but the computer OSes are counting different. For the OS 1024 gb are 1 tb. So there is another loss there. 

[Anghammarad]

1 minute ago, mariushm said:

HDD manufacturers use powers of 1000 to calculate sizes. 

 

For them,

* 1 KB is 1000 bytes

* 1 MB is 1000 KB = 1.000.000 bytes

* 1 GB is 1000 MB = 1.000.000.000 bytes

* 1 TB is 1000 GB =  1.000.000.000.000 bytes

 

Operating system works with multiples of 1024 instead of 1000, so 1 GB actually means 1 GiB (for 1 binary GB) :

 

* 1 KiB = 1024 bytes

* 1 MiB = 1024 x 1024 bytes

* 1 GiB = 1024 x  1024 x 1024 bytes

* 1 TiB = 1024 x 1024 x  1024 x 1024 bytes

 

Windows shows GB instead of GiB because GiB is only a recent standard and most people are already used and aware of the different unit value for file sizes.

 

So if you take 1.000.000.000.000 and divide it by 1024 you get :

 

* 1.000.000.000.000 bytes  / 1024 = 976,562,500  KiB  / 1024 = 953,674.31 MiB / 1024 =  931.32 GiB

 

 

you beat me to it and your post is far more in detail than mine =) Thanks

 

[AshleyAshes]

12 hours ago, Anghammarad said:

This is completely normal...

 

my 2tb only has 1.81 tb after formatting 

 

12 hours ago, Jurrunio said:

That's the limitation of formatting. Your disk does have 1TB of physical capacity, but you will only get 931GB of storage space because of data used for formatting.

I am ceaselessly amazed as to how many people believe, incorrectly, that simply formatting a drive would use gigs and gigs of storage...

[Anghammarad]

17 minutes ago, AshleyAshes said:

 

I am ceaselessly amazed as to how many people believe, incorrectly, that simply formatting a drive would use gigs and gigs of storage...

 

12 hours ago, Anghammarad said:

And the drive capacity by vendor is 1000 gb advertised as 1 tb for example, but the computer OSes are counting different. For the OS 1024 gb are 1 tb. So there is another loss there. 

 

[NinJake]

@mariushm nailed it.