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Snapraid-BTRFS Runner Script

This script is based on the Chronial/snapraid-runner project and runs snapraid-btrfs, sending its output to the console, a log file and via email. All this is configurable.

It can be run manually, but its main purpose is to be run via cronjob or systemd unit.

Given the use of the BTRFS filesystem, this script is only supported on Linux. It requires at least python3.7.

How to use

  • If you don’t already have it, download and install the latest python version.
  • Clone this repository via git.
  • Copy/rename the snapraid-btrfs-runner.conf.example to snapraid-btrfs-runner.conf and edit its contents. You need to at least configure the following configuration items:
    • snapraid-btrfs.executable
    • snapper.executable
    • snapraid.executable
    • snapraid.config
  • Run the script via python3 snapraid-btrfs-runner.py.

See the init dir for a sample systemd timer for automatic scheduled runs.

Features

Includes all the snapraid-runner features:

  • Runs diff before sync to see how many files were deleted and aborts if that number exceeds a set threshold.
  • Can create a size-limited rotated logfile.
  • Can send notification emails after each run or only for failures.
  • Can run scrub after sync

Includes basic snapraid-btrfs features of taking BTRFS snapshots in conjunction with snapraid operations (i.e. diff, sync, cleanup, and scrub). This script omits access to many underlying snapraid-btrfs options, given its intended use as an unattended automatic snapraid tool. Features include:

  • Uses snapraid-btrfs for diff, sync, and scrub operations
  • Can run pool and/or cleanup between sync and scrub

TODO

  • Nothing for now

Changelog

v0.0.2

  • Incorporated fixes from the upstream snapraid-runner project:
    • Add --ignore-deletethreshold (by exterrestris, #25)
    • Add support for scrub --plan, replacing --percentage
    • Remove snapraid progress output. Was accidentially introduced with python3 support.

v0.0.1

  • Initial release
  • Added optional snapraid-btrfs pool and snapraid-btrfs cleanup step after sync
  • Added config options for for --snapper-configs and --snapper-configs-file underlying options in snapraid-btrfs.