Basic Linux Formats

In Linux you can format a Filesystem in several different ways. The current default for Red Hat Linux is third extended Filesystem, ext3, there are other Filesystem available to use.

Linux is moving towards journaling filesystems. A journal records all pending changes, such as data to be written to disk. If a drive crashes, Linux can check the journal for pending changes. No disk check is required which can save a considerable amount of time.

             FORMAT              DESCRIPTION
             ext2The second extended filesystem, which was standard earlier. If you have older system with ext2 partitions, they can easily be converted to ext3.
             ext3The third extended filesystem, which is current default for Red Hat Linux. Includes a journal, which records all pending changes, such as data to be written to disk.
             reiserfsThe Reiser filesystem, which is based on different designs from Linux extended filersystem.
             xfsThe Silicon Graphics Filesystem, which supports extremely large hard drives.

Several other Linux File System are available, including ext, bfs, minix, xia, and jfs. None of these are commonly used today.



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