Linux disk and file system management

Linux disk and file system management
1. each partition has its own set of superblock, file descriptor, block table, inode table, inode table, and data block2. the root inode of each partition is 2, and each inode is fixed to bytes3. each inode in the inode table only records the access mode, owner, group, status (ctime, atime, mtime), and object pointing pointer of the file or folder. 4. real data is recorded in dataBlock. If the database lock corresponding to the file is recorded as file data, if the datablock record corresponding to the folder is the inode Number of the file in the folder, the entire Linux System reads the file system through a kernel functional area named Virtual Filesystem Switch (Virtual File System, VFS. That is to say, the entire Linux File System is actually managed by VFS. We do not need to know what the file system on each partition is. VFS will take the initiative to help us read the file system.