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dotfiles/workstation/.config/btrbk/btrbk.conf
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253
dotfiles/workstation/.config/btrbk/btrbk.conf
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#
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# Example btrbk configuration file
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#
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#
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# Please refer to the btrbk.conf(5) man-page for a complete
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# description of all configuration options.
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# For more examples, see README.md included with this package.
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#
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# btrbk.conf(5): <https://digint.ch/btrbk/doc/btrbk.conf.5.html>
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# README.md: <https://digint.ch/btrbk/doc/readme.html>
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#
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# Note that the options can be overridden per volume/subvolume/target
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# in the corresponding sections.
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#
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# Enable transaction log
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transaction_log /var/log/btrbk.log
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# Specify SSH private key for remote connections
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ssh_identity /home/bryan/.config/btrbk/id_ed25519
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ssh_user root
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# Use sudo if btrbk or lsbtr is run by regular user
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backend_local_user btrfs-progs-sudo
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# Enable stream buffer. Adding a buffer between the sending and
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# receiving side is generally a good idea.
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# NOTE: If enabled, make sure to install the "mbuffer" package!
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stream_buffer 1g
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# Directory in which the btrfs snapshots are created. Relative to
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# <volume-directory> of the volume section.
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# If not set, the snapshots are created in <volume-directory>.
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#
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# If you want to set a custom name for the snapshot (and backups),
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# use the "snapshot_name" option within the subvolume section.
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#
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# NOTE: btrbk does not automatically create this directory, and the
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# snapshot creation will fail if it is not present.
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#
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snapshot_dir .snapshots
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# Always create snapshots. Set this to "ondemand" to only create
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# snapshots if the target volume is reachable. Set this to "no" if
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# snapshot creation is done by another instance of btrbk.
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snapshot_create onchange
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# Perform incremental backups (set to "strict" if you want to prevent
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# creation of non-incremental backups if no parent is found).
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#incremental yes
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# Specify after what time (in full hours after midnight) backups/
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# snapshots are considered as a daily backup/snapshot
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#preserve_hour_of_day 0
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# Specify on which day of week weekly/monthly backups are to be
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# preserved.
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#preserve_day_of_week sunday
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# Preserve all snapshots for a minimum period of time.
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#snapshot_preserve_min 1d
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# Retention policy for the source snapshots.
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#snapshot_preserve <NN>h <NN>d <NN>w <NN>m <NN>y
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# Preserve all backup targets for a minimum period of time.
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#target_preserve_min no
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# Retention policy for backup targets:
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#target_preserve <NN>h <NN>d <NN>w <NN>m <NN>y
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# Retention policy for archives ("btrbk archive" command):
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#archive_preserve_min no
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#archive_preserve <NN>h <NN>d <NN>w <NN>m <NN>y
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# Enable compression for remote btrfs send/receive operations:
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#stream_compress no
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#stream_compress_level default
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#stream_compress_threads default
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# Enable lock file support: Ensures that only one instance of btrbk
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# can be run at a time.
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lockfile /var/lock/btrbk.lock
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# Don't wait for transaction commit on deletion. Enable this to make
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# sure the deletion of subvolumes is committed to disk when btrbk
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# terminates.
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#btrfs_commit_delete no
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#
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# Volume section (optional): "volume <volume-directory>"
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#
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# <volume-directory> Base path within a btrfs filesystem
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# containing the subvolumes to be backuped
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# (usually the mount-point of a btrfs filesystem
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# mounted with subvolid=5 option).
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#
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# Subvolume section: "subvolume <subvolume-name>"
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#
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# <subvolume-name> Subvolume to be backuped, relative to
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# <volume-directory> in volume section.
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#
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# Target section: "target <type> <volume-directory>"
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#
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# <type> (optional) type, defaults to "send-receive".
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# <volume-directory> Directory within a btrfs filesystem
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# receiving the backups.
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#
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# NOTE: The parser does not care about indentation, this is only for
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# human readability. All options apply to the last section
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# encountered, overriding the corresponding option of the upper
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# section. This means that the global options must be set on top,
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# before any "volume", "subvolume" or "target section.
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#
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#
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# Example retention policy:
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#
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# snapshot_preserve_min 2d
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# snapshot_preserve 14d
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# target_preserve_min no
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# target_preserve 20d 10w *m
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snapshot_preserve_min 2d
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snapshot_preserve 14d
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target_preserve_min no
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target_preserve 14d 10w *m
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archive_preserve_min latest
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archive_preserve 12m 10y
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# Global settings
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compat_remote busybox
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send_protocol 2
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# Root backup workaround, omit the volume section
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subvolume /
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target_preserve 14d 10w 6m
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snapshot_dir /.snapshots # Absolute path to snapshots dir
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target /mnt/backup/workstation/root
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# target ssh://router.lan/mnt/backup/workstation/root
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# target /run/media/bryan/backup/workstation/root
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# target ssh://home-router/mnt/backup/workstation/root
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volume /home
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subvolume bryan
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target /mnt/backup/workstation/home
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# target ssh://router.lan/mnt/backup/workstation/home
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target_preserve 14d 10w 6m
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# target ssh://home-router/mnt/backup/workstation/home
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# target /run/media/bryan/backup/workstation/home
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volume /mnt/downloads
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subvolume downloads
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target /mnt/backup/workstation/downloads
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# target /run/media/bryan/backup/workstation/downloads
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volume /
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subvolume /mnt/ebooks
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target /mnt/backup/media
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subvolume /mnt/cover-art
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target /mnt/backup/media
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# target ssh://router.lan/mnt/backup/media
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# target ssh://home-router/mnt/backup/media
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volume /mnt/array/media
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target /mnt/backup/media
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# target ssh://router.lan/mnt/backup/media
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# target ssh://home-router/mnt/backup/media
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subvolume pictures
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subvolume music
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target_preserve_min all # for home-router to keep samba share (and safer overall)
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# #
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# # Simple setup: Backup root and home to external disk
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# #
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# snapshot_dir /btrbk_snapshots
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# target /mnt/btr_backup
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# subvolume /
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# subvolume /home
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# #
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# # Complex setup
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# #
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# # In order to keep things organized, it is recommended to use "volume"
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# # sections and mount the top-level subvolume (subvolid=5):
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# #
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# # $ mount -o subvolid=5 /dev/sda1 /mnt/btr_pool
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# #
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# # Backup to external disk mounted on /mnt/btr_backup
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# volume /mnt/btr_pool
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# # Create snapshots in /mnt/btr_pool/btrbk_snapshots
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# snapshot_dir btrbk_snapshots
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# # Target for all subvolume sections:
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# target /mnt/btr_backup
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# # Some default btrfs installations (e.g. Ubuntu) use "@" for rootfs
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# # (mounted at "/") and "@home" (mounted at "/home"). Note that this
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# # is only a naming convention.
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# #subvolume @
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# subvolume root
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# subvolume home
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# subvolume kvm
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# # Use different retention policy for kvm backups:
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# target_preserve 7d 4w
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# # Backup data to external disk as well as remote host
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# volume /mnt/btr_data
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# subvolume data
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# # Always create snapshot, even if targets are unreachable
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# snapshot_create always
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# target /mnt/btr_backup
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# target ssh://backup.my-remote-host.com/mnt/btr_backup
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# # Backup from remote host, with different naming
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# volume ssh://my-remote-host.com/mnt/btr_pool
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# subvolume data_0
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# snapshot_dir snapshots/btrbk
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# snapshot_name data_main
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# target /mnt/btr_backup/my-remote-host.com
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# # Backup on demand (noauto) to remote host running busybox, login as
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# # regular user using ssh-agent with current user name (ssh_user no)
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# # and default credentials (ssh_identity no).
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# volume /home
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# noauto yes
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# compat busybox
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# backend_remote btrfs-progs-sudo
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# ssh_user no
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# ssh_identity no
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# target ssh://my-user-host.com/mnt/btr_backup/home
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# subvolume alice
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# subvolume bob
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# # Resume backups from remote host which runs its own btrbk instance
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# # creating snapshots for "home" in "/mnt/btr_pool/btrbk_snapshots".
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# volume ssh://my-remote-host.com/mnt/btr_pool
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# snapshot_dir btrbk_snapshots
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# snapshot_create no
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# snapshot_preserve_min all
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# subvolume home
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# target /mnt/btr_backup/my-remote-host.com
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