[Yandex Cloud documentation](../../index.md) > [Yandex Managed Service for OpenSearch](../index.md) > [Concepts](index.md) > Backups

# Backups in Managed Service for OpenSearch

Managed Service for OpenSearch supports automatic and manual [index](indexing.md) backups.

For clusters running an unsupported [DBMS version](update-policy.md#versioning-policy), restoring from backups is not available.

## Creating a backup {#size}

Backups are only created on running clusters.

Automatic backup takes place every hour, and you cannot turn it off.

Learn about creating manual backups in [Managing backups](../operations/cluster-backups.md).

## Storing a backup {#storage}

Storing backups in Managed Service for OpenSearch:

* All automatic and [manual](../operations/cluster-backups.md) backups are incremental. This means the initial backup contains all index segments, and all subsequent backups contain only the _increment_, i.e., changes made since the previous backup. This saves storage space and reduces the cost of using resources.

* When [requesting information about a backup](../operations/cluster-backups.md#get-backup), you will get the full size of restorable data, but you only pay for the incremental part.

* Backups are stored in object storage as binaries.

* Once created, a backup is compressed for storage.

* Automatic backups are stored for two weeks, and you cannot change that period. Manual backups are stored until the user deletes them.

* [Quotas](https://console.yandex.cloud/cloud?section=quotas) and limits for cluster storage do not apply to backup storage.

* Backups are stored in an object storage and do not take up space in the cluster storage. If there are N GB of free space in the cluster, the first N GB of backups are stored free of charge.

    
    For more information, see the [Managed Service for OpenSearch pricing policy](../pricing.md#rules-storage).


## Recovery from a backup {#capabilities}

Restoring a cluster from a backup creates a new cluster with that backup’s data. You need to specify all the cluster's settings, just as when creating a new cluster. If your folder lacks [resources](limits.md) to create such a cluster, you will not be able to recover it from a backup.

To restore a cluster from a backup, follow [this guide](../operations/cluster-backups.md).

{% note tip %}

Conduct scheduled tests of cluster recovery from backups.

{% endnote %}