Internal storage: how is it organized ?

[AC Question]

I have a Samsung i9196, with 8 GB disk space
After installing Lollipop 5.0, I have just 5.5 GB avaialble. The "responsible"are the folder below.

What are they for ? Can I delete them? or reduce the space allocated for them?

Filesystem Size Used Free Blksize
/dev 667.4M 44.0K 667.4M 4096
/sys/fs/cgroup 667.4M 0.0K 667.4M 4096
/mnt/asec 667.4M 0.0K 667.4M 4096
/mnt/obb 667.4M 0.0K 667.4M 4096

Thanks and regards
aflamal

 

[Golfdriver97]

Welcome to the forums. Those are system files, and I would leave them alone.