# Persistent volumes for services

Attach a disk to a service so its data survives redeploys and rollbacks.

Canonical URL: https://unbroker.cloud/changelog/2026-07-07-persistent-volumes
Published: 2026-07-07
Tags: Apps, Storage

## Related reading

- [Cloud Apps](https://unbroker.cloud/deploy)
- [Persistent storage](https://unbroker.cloud/solutions/persistent-files)

Services can now keep data on a persistent volume. Set a mount path and a size when you create a service, and anything written there is kept across redeploys, rollbacks and restarts.

A few things to know:

- A service with a volume runs a single replica, because only one instance can write to the disk at a time.
- Volumes can grow, but they can't shrink.
- Volume storage is billed per GiB per month.

Read more in [Persistent storage](https://docs.unbroker.cloud/apps/storage).