Attach a persistent disk

4 min readUpdated August 2026

Persistent disk is Settings → Storage → Volumes. Add a name, size, and mount path. Every replica mounts the same volume (shared).

Step by step

Open the app → Settings → Storage → Volumes.

Click Add volume. Set Name, Size, and Mount path (the path inside the container). Commit the app change.

If backups are offered on the volume, enable them and set the schedule. That is separate from add-on database backups.

Ephemeral container disk

Without a volume, the container filesystem does not survive a new revision. Put user data on a volume or in Postgres / Valkey.

Next steps