# FAQ

Common questions about Stack discovery, re-running scans, credentials, and managing multiple Stacks.

## Can I have multiple Stacks for the same server?

Yes. For example, you might have one Stack for production databases and another for file backups, with different schedules and storage destinations.

## What happens to existing backups when I re-run discovery?

Already-enabled backups are not changed. New resources appear in the discovered list and you can choose to enable them.

## Can I disable a specific resource without deleting it?

Yes. You can pause or disable individual backups from the Stack resource list without removing them from discovery.

## Does discovery store my credentials?

Database credentials discovered through environment variables or Kubernetes secrets are stored encrypted and are never exposed in the UI.

## What if a resource isn't discovered automatically?

You can always create backups manually from the **Backups** section, or add a custom resource to a Stack.

- [Stack Discovery Overview](https://simplebackups.com/docs/stack-discovery/overview): Learn how Stacks scan your infrastructure and turn discovered resources into automated backups.