---
title: "Configure 1C server cluster volume autoscaling"
sidebar_label: "Configure volume autoscaling"
sidebar_position: 6
description: "How to manage automatic scaling for 1C server cluster volumes"
---

import EditIcon from '@selectel/docux/icons/edit'
import CheckIcon from '@selectel/docux/icons/check'
import Formbricks from '@theme/MDXComponents/Formbricks'

# Configure 1C server cluster volume autoscaling

## How it works \{#principle-of-operation}

Autoscaling is available and enabled by default for 1C server clusters of [fixed configuration of the Standard line](/cloud-1c/about/configurations.mdx#fixed-cluster-configurations) and [custom configuration](/cloud-1c/about/configurations.mdx#custom-cluster-configurations); it can be [enabled](#enable-autoscaling) and [disabled](#disable-autoscaling) manually if necessary.

If a 1C server cluster volume is 80% full for 3 hours, a scaling task will be created to prevent downtime. The volume will be increased by 15% of its current size, but by at least 20 GB.

The scaling task will appear in the [control panel](https://my.selectel.ru/ones/server): in the top menu, click **Products** → **1C Managed Cloud** → **1C Server Cluster** section → cluster page → **Maintenance** tab, and will be completed during the next [maintenance window](/cloud-1c/cluster/maintenance-window.mdx). [Increasing the 1C server cluster disk size](/cloud-1c/cluster/resize-cluster.mdx) in the control panel before scaling starts will cancel the task.

autoscaling will be disabled automatically if you change the [configuration](/cloud-1c/about/configurations.mdx#fixed-cluster-configurations) to the HighFreq line or when the maximum volume size of 1 TB is reached.

You cannot reduce the volume size after autoscaling as this may compromise the integrity of the file system and data — you can [create a new 1C server cluster](/cloud-1c/quickstart.mdx#choose-cluster-configuration) with a smaller volume.

## Enable autoscaling \{#enable-autoscaling}

1. In the [control panel](https://my.selectel.ru/ones/server), click **Products** in the top menu and select **1C Managed Cloud**.
2. Go to the **1C Server Cluster section**.
3. Open the cluster page → **Settings tab**.
4. In the **Disk auto-scaling** row, click <EditIcon />.
5. Select the **Enable** checkbox.
6. Click <CheckIcon />.

## Disable autoscaling \{#disable-autoscaling}

1. In the [control panel](https://my.selectel.ru/ones/server), in the top menu click **Products** and select **1C Managed Cloud**.
2. Go to the **1C Server Cluster** section.
3. Open the cluster page → **Settings** tab.
4. In the **Disk auto-scaling** row, click <EditIcon />.
5. Clear the **Enable** checkbox.
6. Click <CheckIcon />.

<Formbricks />