Linux determines if the storage space is full

1. The storage space is full.

The 2.inode node is full.

View: http://www.cnblogs.com/predisw/p/4799664.html

The number of Inode nodes allowed for a file system is limited, and if the number of files is too large, even if each file is a 0-byte empty file, the system will eventually run out of node space and no more files can be created. So when you find that you can't build a file, consider whether there is space in the hard drive data area (via the du command), and then check the node space.

Multiple files that are hard-connected to each other must reside on the same file system. The root device and any partition, floppy disk, NFS, optical drive, etc. that require mount to be mounted are a separate file system with a corresponding device number for each file system, and there is no connection between files with the same Inode node in different file systems. The system uniquely identifies a file by the combination of the device number and the inode number.

Linux can support a variety of file systems, in fact, because Linux provides a virtual file system Vfs,vfs as the actual file system of the upper layer of software, masking the actual file system underlying specific structural differences, for the system to access files located in different file systems provide a unified interface. In fact, many file systems do not have inode structure, and its directory structure is different from the above discussion, but through the VFS, the system provides a virtual consistent inode and directory item structure. Therefore, the ' ls-il ' command actually shows that the inode should be the VFS inode, which means that the inode is a data structure that exists in memory, not necessarily the actual hard disk structure.

Linux determines if the storage space is full