### What is inode

It is a datastructure in linux which stores all the info about a file besides its actual name and its contents.

### What happens when "No space left on device"

- Check available memory and it usage using **du** or **df** command
     -  du -sh /
     Space used on a particular drive
     - df -h 
     Drive wise split of space usage/availability
- Reason : 
    - Deleted file is already being used by a process and is therefore not released by the kernel. 
    use lsof command to get the process which is causing this problem and restart it.
    - Out of inodes. Inodes are limited for the filesystem. If all of them are used up, you cannot add more files
    *df -i*
    - Corrupted filesystem blocks