Sign up ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

I have encrypted my /home folder using ecryptfs. I've noticed that it uses as 1.5 times the disk space compared to when it was not encrypted. Is this problem caused by the eCryptfs and is there a way to deal with it?

share|improve this question

1 Answer 1

eCryptfs will add a small amount of header data to a file, so if you have many thousands of files this could explain some of the extra space being used.

Also, Linux allows files to be non-contiguous and these can have "holes" in them which don't use any space. However, eCryptfs has to encrypt these holes (they are effectively zero blocks which are encrypted) and so this uses up more blocks than the original file that has holes in it. Perhaps that is the reason for the overhead.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.