Filesystem

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a short slideshow describing linux filesystem and its advantages. you can contact anant @ http://anantshri.info

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Filesystem

  1. 1. File System
  2. 2. What is file System? Its convention for naming files and the way they are stored in the computer
  3. 3. Under Discussion <ul><li>Extended FS (extfs) </li></ul><ul><li>Extended 2 (ext2fs) </li></ul><ul><li>Extended 3 (ext3fs) </li></ul><ul><li>Swap (swap) </li></ul>
  4. 4. Extended File System <ul><li>Original Linux File System </li></ul><ul><li>designed and implemented on Linux by Rémy Card ( MASI), </li></ul><ul><li>Theodore Ts'o, MIT and StephenTweedie, Redhat </li></ul>
  5. 5. Extended File System 2 <ul><li>Extension of EXT file system </li></ul><ul><li>Used in Linux from 1993 </li></ul>
  6. 6. Extended File System 3 <ul><li>Recently Developed File system </li></ul><ul><li>An Enhanced Form of ext 2 </li></ul><ul><li>Contains advancements like Extended Attributes, POSIX ACL (Access Control List) </li></ul>
  7. 7. Extended File System 3 <ul><li>No need of Defrag as it is handled by file system itself </li></ul><ul><li>File system Keep Track of its state and perform necessary task like disk scanning by itself. </li></ul><ul><li>Journal keeping reduces disk scan time </li></ul><ul><li>Flexible Block Size Selection </li></ul><ul><li>Provides Hi-Security at both user and system level (only competitor is NTFS) </li></ul>
  8. 8. Swap <ul><li>Special File System Generally Hidden from normal User </li></ul><ul><li>An Extension of System RAM </li></ul><ul><li>Used To Keep frequently accessed data </li></ul><ul><li>Generally size is double of RAM, but no need if you have more than 1GB of RAM. </li></ul><ul><li>As this is a separate partition it acts as a system speed booster. (unlike windows which creates a file on the fly reducing the speed) </li></ul>
  9. 9. File System Hierarchy <ul><li>Ext / ext2 / ext3 all file system follows a similar hierarchical structure </li></ul><ul><li>Files System Starts with a forward Slash (/) </li></ul><ul><li>All directories have their specific purposes. </li></ul>
  10. 11. File System <ul><li>Besides this on some new systems you might find these directories </li></ul><ul><li>/media - replacement of /mnt </li></ul>

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