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h English (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 |