One of the advantages of our cloud computing platform is the ability to freely change your server configuration, add or remove CPU cores, RAM, and storage to best suit your needs. UpCloud offers custom server configurations alongside the preconfigured instances for you to pick from at server deployment, but selecting one does not exclude you from the other. This article explains the differences between these configuration options and how to easily move between them at will.

Differences Between the Server Models

Preconfigured servers offer balanced resource configurations that allow predictability in usage and costs. The packages comprise of a public network IPv4 address, an optional IPv6 address, and a monthly public network transfer quota, as well as the CPU, RAM, and storage, all included at a cost-effective monthly price.

Freely scalable servers give you the ability to configure all the resources: CPU, RAM, and disk space. Optimise the resource usage and billing for the specific needs of your setup. Network addresses and traffic are priced per usage so you will never pay extra for unused quotas. Freely scalable servers are great for varying workloads or when you require a server to only run periodically.

Reconfiguring Your Server

To adjust your server configuration, first, log into your UpCloud control panel and open your server details. Making changes to your system settings will require you to shut down the server before the options for configuration and disk management become available. With Windows servers, make sure to give the shutdown command from the operating system to safely power off your server.

We highly recommend making a backup of your server before resizing storage.

Once your server has been powered down you can continue. The option to select a new configuration is in the General Settings on the rightmost section called CPU and Memory Settings. The Configuration drop-down menu allows you to choose either one of the preconfigured systems or the custom configuration. With the custom configuration selected, you can set the CPU core count and RAM amount using the sliders in the settings up to 20 cores and 128GB of RAM. After you have made the desired changes, save the new configuration by pressing the Update button underneath.

Changing the server configuration

If you require more storage space, you can scale up the current disk or attach up to 3 additional storage devices in the Disks section at your server details. You can find more information about this in our guide for managing disks.

When you have finished making adjustments to your configuration, start the server again to take advantage of your newly added system resources. If you change the size of a previously used disk, take a look at the instructions for resizing storage to also update it in the OS.

Switching Between Server Models

Most of the time running preconfigured packages is the more efficient option. If you require additional memory or CPU temporarily, using the custom configuration gives a simple solution. The storage disks are not automatically resized allowing you to return to the original preconfigured plan. Just as easily as you can jump between preconfigured instances, you can switch between custom and preconfigured systems by simply changing your server settings.

Selecting a custom configuration

Switching to a custom configuration from any preconfigured instance is as easy as changing the configuration drop-down to the Custom configuration while the server is powered down.

The sliders below will indicate your current system resources, simply move the slider to increase or decrease CPU cores or RAM, then press the Update button to confirm the change.



Selecting a preconfigured instance

Changing to preconfigured packages is just as easy. Again, make sure your server is powered down and open the General Settings, select a preconfigured instance with the same storage capacity as your server currently has installed and press Update.

If you need more server resources, you can always select a larger preconfigured option and then extend your storage disk to take advantage of the added capacity. Remember to configure the additional storage space also on the OS level by following the resizing storage guide.


The preconfigured packages include much of normal usage for a conveniently combined price while custom configurations calculate hourly pricing purely by usage. Selecting a preconfigured instance is the cost-effective way to get started, but advanced users might wish to make use of the freedom of custom configuration.

In case you need more disk space than is bundled in the preconfigured instances, you can always attach additional disks. This way your server retains the preconfigured pricing while any extra storage is billed per GB. If you need to increase the size of the first disk device, go to the Disks section at your UpCloud control panel and press the Change size button to adjust the storage size to your requirements. Note that you can only increase the disk size this way, to safely decrease the storage size follow our guide for resizing storage.

When making changes to your server configuration, you can see the effect it has on pricing under About The Server just left of the configuration options after saving the changes with the Update button. Feel free to try different configurations, new billing takes an effect only after restarting your server.

To find out more about preconfigured and custom server options, see our pricing page for in detail list of hourly costs.