Managing RAID on Linux

ext2

ext2, originally released in 1993, has a single advantage over the new, high-performance filesystems available to Linux users: it is the most widely implemented filesystem for Linux and has undergone seven years’ worth of development and debugging. ext2 is not without its limitations. For example, unlike some newer filesystems, which can dynamically allocate inodes, ext2 allocates a fixed number of inodes when the filesystem is created. As a result, users must plan carefully when creating large filesystems because when all inodes are exhausted, no new files can be created. The only options at that point are to build a new filesystem or to erase existing files in order to deallocate inodes.