I got the following problem:
df -h
shows:
ubuntu@:~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 32G 9.6G 21G 33% /
udev 819M 12K 819M 1% /dev
tmpfs 331M 200K 331M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 827M 0 827M 0% /run/shm
Here i can see that I have 21GB available in the 32G /
partition.
However, when I try df -i
I get
ubuntu@:~$ df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/xvda1 2097152 2096964 188 100% /
udev 209564 382 209182 1% /dev
tmpfs 211573 274 211299 1% /run
none 211573 4 211569 1% /run/lock
none 211573 1 211572 1% /run/shm
Here I see the usage is 100%. I'm not sure why the usage is shown differently in both.
Secondly the /root
folder looks very strange to me:
ubuntu@:/$ ls -al
total 132240
drwxr-xr-x 24 root root 4096 Jan 8 15:04 .
drwxr-xr-x 24 root root 4096 Jan 8 15:04 ..
drwxr-xr-x 2 root root 4096 Mar 27 2013 bin
drwxr-xr-x 3 root root 4096 Mar 21 2013 boot
drwx------ 5 root root 135319552 Apr 1 14:11 root
drwxr-xr-x 18 root root 640 Apr 1 14:03 run
drwxr-xr-x 2 root root 4096 Mar 27 2013 sbin
Why the size of the root directory is so huge? If I go into the /root
directory and type in ls
the terminal does not even respond. So I'm confused with this.
Any suggestions will be helpful.
Thanks.
Best Answer
For your first question,
df -h
reports the file system disk space usage in human readable form. Human readable because it reports size as in kb, mb or gb and not purely in bytes, whereasdf -i
reports the inode information instead of block usage.inode in layman's terms is data about a file. Some space is required to store the data about the files in your filesystem. So if this space is full, you can't store files in your filesystem even though you may have space because there is no space to store data about the file you want to store.
Secondly, you need superuser permissions to see what is stored in
/root
folder, so I am not pretty sure how you got into the/root
folder. The reason whyls
is failing is because it doesn't have read permissions to read the contents of/root
to report it to you. To see why/root
has occupied to much space, you'll need superuser permissions to investigate and unless you have that, I am not sure you can even read what is inside that.The size of folder is 4096 because that is the minimum size it requires to store information about its contents. If it exceeds this size, it means it has a lot of files whose information requires that amount of space.
I would recommend you investigate the contents of
/root
folder since that seems to be the reason why yourdf -i
shows 100% utilization.