Virtual data centers

Your IONOS cloud infrastructure is set up in Virtual Data Centers (VDCs); they contain all the building blocks and the resources required to manage and operate your virtual infrastructure.

Start center

Menu Bar > Data Center Designer > Open Start Center

To open the Start Center, click the 'Data Center Designer' button on the toolbar and select 'Open Start Center'.

Some DCD features, such as the Start Center, require user permissions. Contract owners and administrators have these permissions by default. Owners and administrators can manage and assign permissions to other users in the User Manager. Only the users with corresponding permissions will have the 'Data Center Designer' button on their toolbar.

Learn more about managing access to resources for users, who are not contract owners or administrators.

The pane on the left lists all your virtual data centers (VDCs) in alphabetical order. For each VDC, location region and version number are shown. VDC version numbers begin at 0 and are incremented by 1 each time that the data center is provisioned. The 'Details' button to the right of each VDC displays all its VMs, resources, and status (on, off, or de-allocated).

Use the pane on the right to create new VDCs.

Create a new VDC

To set up your virtual infrastructure, you first must create a virtual data center (VDC).


  • You are logged in (?)

  • You are the contract owner or an administrator (?)

    • or -

  • You have the permissions to 'Create Data Center' (?)

How to create a new VDC

  • Open the dialog for creating a data center.

    Menu Bar> Data Center Designer

    • Name: Enter a name for the data center.

    • (Optional) Description: Enter a text to describe your new virtual data center.

    • Region: Select the location of the physical IONOS data center to host your virtual data center.

  • Confirm your actions by clicking Create Data Center.

    The data center is created and opened in the Workspace.

View and edit an existing VDC

You need the permissions to make changes to an existing virtual data center. With read access only, you can still open the VDC but cannot provision your changes.

You can always edit a VDC that you have created yourself. As the owner, you can define who has access to your VDC.


  • You are logged in (?)

  • You are the contract owner or an administrator (?)

    • or -

  • You have the permissions to edit the data center (?)

How to view and edit an existing VDC

  • Open the Dashboard and click on a VDC in My Data Centers

    • or -

  • Select the VDC you would like to view or edit from the Start Center

    Menu Bar > Data Center Designer > Open Start Center

    The selected data center is opened.

Delete a VDC

When you delete a VDC, all the virtual infrastructure it contains is erased and cannot be restored.


  • You are logged in (?)

  • You are the contract owner or an administrator (?)

    • or -

  • You have the permissions to edit the data center (?)

How to delete a VDC

  • Open the data center (?)

    Dashboard > My Data Centers

  • In the Inspector, select the name of the data center

  • Click Delete

  • In the dialog that appears, confirm the action by entering your password and clicking OK.

    The selected item is deleted and cannot be restored.

When you delete a server and its storage devices, or an entire data center, their backups are not deleted automatically. Only when you delete a Backup Unit will the backups it contains actually be deleted.

When you no longer need the backups of deleted VMs, you should delete them manually in the Backup Unit Manager to avoid unnecessary costs.

Scale resources

Should the capacity of your virtual data center no longer match your requirements, you can still increase or decrease your resources after provisioning.

It is not possible to reduce storage size after provisioning.

If you change the properties of a server supported by Live Vertical Scaling (LVS), no restart will be necessary.

Live Vertical Scaling (LVS)

With IONOS LVS you can change the resources of a virtual server during operation without restarting, which means you can add RAM or NICs ("hot plug"). This allows you to react to peak loads quickly without compromising performance.

The types of resources that can be scaled without a reboot will depend on your VMs operating system.

Linux supports the entire scope of IONOS Live Vertical Scaling, whereas Windows is limited to CPU scaling.

Since kernel 2.6.25, Linux has LVO modules installed by default, but they may have to be activated manually depending on the derivative.

For more information see the Linux VirtIO page

Without restarting a server, its resources can be scaled as follows:

Live Vertical Scaling

















For IONOS images, the supported properties are already preset.

After uploading, you can define the properties for your own images before applying them to new storage volumes. The settings must be supported by the image, otherwise, they will not work as expected. After provisioning, you can change the settings directly on the storage device, which will require a restart of the server.

See also:


  • You are logged in (?)

  • You are the contract owner or an administrator (?)

    • or -

  • You have permissions to edit the required data center (?)

  • The VDC is open (?)

How to scale resources

  • Modify server:

    • In the Workspace, select the required server and modify its properties in the Inspector.

If you want to make changes to multiple VMs, select the data center and change the properties in the Settings tab.

There you find an overview of all assets belonging to the selected VDC, and can change cores, RAM, server status, and storage size without having to switch from VM to VM in the Workspace.

  • Modify storage:

    • (Optional) Create a snapshot of the system for recovery in event of problems (?)

    • In the Workspace, select the required storage device and increase its size.

    • Provision your changes

      The storage size is adjusted in the DCD.

    • You now need to set the new size at the operating system level of your VM.

Default settings

You can set your default settings for virtual data centers and other frequently used items, so you don't have to re-enter them each time you create them.

In default settings you can specify the default location for all new VDCs, or default capacity for newly added storage, to be automatically selected.