6.6. File System Errors¶

6.6.1. System Inconsistency¶

../_images/fs_errors.png

scandisk
fsck (file system check)

6.6.2. Journaled File Systems¶

Journaled File Systems provide aditional robustness and can be checked for errors faster, especially after a system crash.
Transaction records or Journals are maintained for any file access activity. The journal is used to facilitate a file system check. Files that are not in use at all, do not need to be checked.

6.6.3. Fragmentation¶

Fragmentation (not contiguous on the disk) naturally occurs as files are added, deleted and extended on a system.
A fragmented disk can degrade the speed of file reads.
Why is fragmentation somewhat less of a concern with Indexed File Systems, such NTFS or inode based file systems, than it is for Linked File Systems, such as FAT or FAT32?