---
title: "MySQL semi-sync cluster backups"
sidebar_label: "Backups"
sidebar_position: 12
description: "MySQL semi-sync cluster backup schedule, backup retention period, and how to restore a cluster from a backup"
---

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import Tabs from '@theme/Tabs'
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# MySQL semi-sync cluster backups

With MySQL semi-sync Managed Databases, backups are created automatically—you don't need to configure or monitor them yourself.

The WAL-G tool is used to create cluster backups. Point-in-Time Recovery is performed using binary log entries (Point-in-Time Recovery).

Backups are stored in isolation from other users' backups.

Backups cannot be downloaded. Automatic backup creation cannot be disabled.

## Backup schedule \{#backup-schedule}

* full cluster backups are created once a day;
* binlog files are created regularly or when a certain amount of changes have accumulated.

## Backup retention period \{#backup-retention-period}

Backups are stored for 7 days, after which they are deleted.

Backups of deleted clusters are stored for 7 days from the moment of creation. From a backup, you can [restore the cluster](#restore-cluster).

## Restore cluster \{#restore-cluster}

You can restore a cluster from a backup to any point in time within the last 7 days.

Restoring creates a new database cluster — you can change the name, configuration (with the same or larger disk size), number of nodes, network, and DBMS settings. [Location](/infrastructure/locations.mdx), DBMS type, and version cannot be changed.

<Tabs queryString="restore-cluster">
  <TabItem value="if-cluster-not-deleted" default>
    <TabItemLabel>
      If the cluster is not deleted
    </TabItemLabel>

    1. In the [Control panel](https://my.selectel.ru/vpc/default/dbaas/), on the top menu, click **Products** and select **Cloud Databases**.
    2. Open the **Active** tab.
    3. In the cluster <MoreVerticalIcon /> menu, select **Restore**.
    4. Select how to restore the cluster—from the last available backup or to a specific point in time within the last 7 days.
    5. You will be redirected to the page for creating a new cluster. If necessary, change the cluster settings (more details in the [Create a Cluster](/managed-databases/mysql-semi-sync/create-cluster.mdx) guide) and click **Create Cluster**.
    6. After the cluster is restored, the node addresses will change—update them in the application that connects to the cluster.
  </TabItem>

  <TabItem value="if-cluster-deleted">
    <TabItemLabel>
      If the cluster is deleted
    </TabItemLabel>

    1. In the [Control panel](https://my.selectel.ru/vpc/default/dbaas/), on the top menu, click **Products** and select **Cloud Databases**.
    2. Open the **Deleted** tab.
    3. In the cluster <MoreVerticalIcon /> menu, select **Restore**.
    4. Select how to restore the cluster—from the last available backup or to a specific point in time within the last 7 days.
    5. Click **Continue**.
    6. You will be redirected to the page for creating a new cluster. If necessary, change the cluster settings — more details in the [Create a Cluster](/managed-databases/mysql-semi-sync/create-cluster.mdx). guide.
    7. Click **Create Cluster**.
    8. After the cluster is restored, the node addresses will change—update them in the application that connects to the cluster.
  </TabItem>
</Tabs>

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