Operating Systems 2017F Lecture 18

From Soma-notes

Additional Notes

Lec 18

  • More on filesystems
  • How can you recover a fs and how do you delete a file?


A filesystem is a:

  • Persistent data structure
  • Stored in fixed size blocks (at least 512 bytes in size)
  • Maps hierarchical filenames to file contents
  • Has metadata about files somehow


What's in a filesystem

  • data blocks
  • metadata blocks