snapdir sync

Copy a snapshot (its manifest + objects) directly between two stores, streaming through memory — no local staging.

sync transfers a snapshot from one store to another without writing it to the local cache. This is the efficient way to replicate snapshots between, say, two S3 buckets or from S3 to local. See the Syncing guide.

Usage

snapdir sync [OPTIONS] --from <STORE> --to <STORE>

Options

sync requires both --from and --to:

It also accepts the global options; the most relevant are --id (snapshot to copy) and the transfer-tuning flags -j/--jobs, --limit-rate, and --adaptive.

Examples

Copy a snapshot between two S3 buckets:

snapdir sync --id 1220abc... --from s3://bucket-a/snapshots --to s3://bucket-b/snapshots

Copy a snapshot from S3 down to a local file store:

snapdir sync --id 1220abc... --from s3://my-bucket/snapshots --to file:///srv/backups

See also

• snapdir push — upload from a directory or staged snapshot
• snapdir fetch — download a snapshot into the cache
• Syncing guide
• Stores guide