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31 lines
1.6 KiB
Plaintext
31 lines
1.6 KiB
Plaintext
Enhancement: Add comppression support
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We have added compression support to the restic repository format. To create a
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repository using the new format run `init --repository-version 2`. Please note
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that the repository cannot be read by restic versions prior to 0.14.0.
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You can configure if data is compressed with the option `--compression`. It can
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be set to `auto` (the default, which will compress very fast), `max` (which
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will trade backup speed and CPU usage for better compression), or `off` (which
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disables compression). Each setting is only applied for the single run of restic.
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The option can also be set via the environment variable `RESTIC_COMPRESSION`.
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The new format version has not received much testing yet. Do not rely on it as
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your only backup copy! Please run `check` in regular intervals to detect any
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problems.
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To upgrade in place run `migrate upgrade_repo_v2` followed by `prune`. See the
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documentation for more details. The migration checks the repository integrity
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and upgrades the repository format but will not change any data. Afterwards,
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prune will rewrite the metadata to make use of compression.
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As an alternative you can use the `copy` command to migrate snapshots: first create a new
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repository using `init --repository-version 2 --copy-chunker-params --repo2 path/to/old/repo`.
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Then use the `copy` command to copy all snapshots to the new repository.
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https://github.com/restic/restic/issues/21
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https://github.com/restic/restic/issues/3779
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https://github.com/restic/restic/pull/3666
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https://github.com/restic/restic/pull/3704
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https://github.com/restic/restic/pull/3733
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