/// CONNECT A PROVIDER / BACKBLAZE B2

Backblaze B2

B2 exposes an S3-compatible API, so storafleet connects with access keys and a regional endpoint. The credentials come from a B2 application key — not your master key.

Don't have a Backblaze B2 bucket yet? Create one first →

Use a scoped application key, never the master key. The master key has full account access and can't be limited to a single bucket.

Create an application key

Screenshot: the provider's key / secret confirmation screen — copy both values now (the secret is often shown only once).

In the Backblaze dashboard, create an application key scoped to the bucket. It maps to S3 credentials like this:

The keyID is the Access Key ID.
The applicationKey is the Secret Access Key.

Paste both into the Access Keys path of the Create Fleet wizard.

Endpoint

The B2 S3-compatible endpoint is https://s3.<REGION>.backblazeb2.com. Use the region your bucket lives in and enter that as the custom endpoint.

Versioning

On B2, versioning is always on and is read-only through the S3 API — you can read previous versions, but you can't toggle versioning on or off via S3.

Object Lock

B2 supports Object Lock / WORM (write-once, read-many), so objects can be held immutable for a retention period.

Good for cold storage

B2 has the lowest cost per GB of the supported providers, which makes it a strong choice for backups and cold storage.

Pair B2's low storage cost with Object Lock for cheap, tamper-resistant backup Fleets.

PreviousCloudflare R2

NextWasabi