# Backups for OCI

You can perform backups automatically based on the configuration for a hypervisor or VM group, or manually for a VM group or a specific instance.

The first backup of an instance is always a full backup. By default, all subsequent backups are incremental, capturing any changes to instance data since the last backup.

You can recover instance data, even when the most recent backup was incremental.

Note

- Oracle Cloud Infrastructure allows the creation of sub-compartments up to six levels deep. You can back up and restore instances that are under those sub-compartments (as well as under the root compartment) for OCI regions.

- Backup requires the instance and the access node to be located in the same region.

## Backup Flow

1. Create snapshots for volumes.

2. Create temporary replica volumes from snapshots.

3. Attach volumes to proxy.

   Note

   The maximum number of attachments is 32 for both Linux and Windows.

4. Back up volumes and instance metadata.

5. Detach and delete temporary volumes.

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