Translations:Btrfs/124/en

Advantages

• It is possible to detect nearly any corruption because of the checksums
• When the power is lost, or the disk is disconnected, all old data is save. WHY?
  • Every bit of "old" data from before the power loss or the disconnection is present because it is NOT overwritten
  • Only the newly written data may be partly damaged
  • The metadata may also be partly damaged
  • When mounting the volume it is possible by analyzing checksums and metadata to find the point in the filesystem where all was good
  • Btrfs will automatically roll back to this point, then it can mount the file system writable