New 3Tb drive is only showing ~2.73Tb available

Asked by Bob Richard

Is it normal for an unformatted (new) 3Tb drive (model WDC WD30EZRX-00DC0B0 ) to show ~2.73Tb available. Where is the remaining 27Gb? I expect some space used, but this seems like a lot.

If this is the wrong forum to post, please advise.

Your comments are appreciated.

Thank you.

Question information

English Edit question
Ubuntu gnome-disk-utility Edit question
No assignee Edit question
Solved by:
Thomas Krüger
Last query:
Last reply:
Revision history for this message
Best Thomas Krüger (thkrueger) said :

The normal person and the manufacturers of HDD have a different calculation of what a TB is. While most people consider it 2^40 byte = 1,0995×10¹² byte, the manufacturers consider it 10^4 bytes = 1×10¹² bytes. This is why about 9% of your disk are missing. It is not an Ubuntu error.

Revision history for this message
Bob Richard (robertrichard) said :

Thank you.

As I was getting the same numbers for both Ubuntu and Windows, I expected something like this. I didn't think Ubuntu would be the issue.