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Increasing the size of an additional disk

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If you have reached the maximum capacity of your additional disk, you can add more storage by increasing its size.

 

Requirements

OVHcloud Control Panel Access

 

Instructions

The following steps presume that you have configured an additional disk according to our guide.

 

Monitoring disk usage before resizing

Warning

NOTE: We recommend that you always maintain 20% free space on your storage volumes. This ensures optimum performance and avoids the risk of system degradation or failure when the volume reaches its maximum capacity.

To ensure that you resize your disk at the right moment, it is essential to monitor disk usage regularly. Below are quick tutorials for both Windows and Linux to help you track disk space and anticipate when an upgrade is needed.

On Windows
On Linux
Using Command Prompt

Open Command Prompt (Win + R → cmd → Enter).

Run the following command:

wmic logicaldisk get name, size, freespace

This will display the free space and total size of each disk.

Using PowerShell

Open PowerShell as Administrator.

Run the following command:

Get-PSDrive | Where-Object {$_.Free -ne $null} | Select-Object Name, Used, Free

This will show the used and available disk space.

 

Modifying the size of the disk

Click on Block Storage in the left-hand menu.

If the volume is attached to a Windows instance, click on the more options ... button in the row of the volume and select Detach from instance.

Click on ... in the row of the volume and select Edit.

Block storage service list

In the next screen, increase Volume capacity and click Modify the volume.

Block storage edit volume

 

Extending the partition

Windows instance
Linux instance

Before proceeding, reattach the volume to the instance. Click the more options ... button to the right of the volume and select Attach to instance.

Establish a remote desktop (RDP) connection to your Windows instance.

Once logged in, right-click on the Start Menu button and open Disk Management.

Windows start management

The extended disk now displays the additional capacity as unallocated space.

Windows block storage extend

Right-click on the volume and select Extend Volume from the context menu.

Windows block storage extend - step 2

In the "Extend Volume Wizard", click on Next to proceed.

You can modify the disk space in this step if you want to add less than the entire amount to the partition. Click on Next.

Windows block storage extend - step 4

Click on Finish to complete the process.

The resized volume now includes the additional disk space.

Windows block storage extend - step 3

Once this is completed, detach and reattach the volume to the instance to ensure the updated QoS settings (IOPS and bandwidth) are properly applied.

 

Go further

Browse all the Block Storage guides.

Browse the rest of the OVHcloud US documentation for guides on our other products and services.

Learn more about Block Storage on the OVHcloud US website.