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Translations:Btrfs/124/en

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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
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