This article deals with upgrading the VPS ON service. If you want to upgrade VPS SSD, follow the instructions VPS SSD – Upgrade.

In this article, you will learn:

• How upgrading VPS ON works
• How to perform the upgrade
• Common issues
• Frequently asked questions

Upgrading VPS ON parameters allows you to independently change the number of processor cores, RAM and SSD size within the given limits. The system allows you to set the following parameter ranges:

• Processor cores: 1 to 4
• RAM: 0,5 to 16 GB
• SSD disk space: 5 to 480 GB

By default, CPU performance is shared in a ratio of 1:3. As part of the upgrade, you can reserve the processor cores only for that VPS.

The VPS ON system does not support downgrades. The upgrade process is therefore irreversible for any VPS ON.

Before performing an upgrade, take the following precautions:

• Expect to restart the server. Make sure that all services start properly on the server after restarting.
• Back up your server. The upgrade itself shouldn’t result in data loss, but there have been reports of damage due to unprofessional interventions during or following the upgrade.

Next, follow these steps:

1. Log into the customer administration panel.
2. In the navigation bar, select Server Hosting VPS ON.
3. Select the service to upgrade.
4. In the left menu, select Upgrade.
5. Use the sliders to set the desired parameters and confirm using the Upgrade button.

After completing the upgrade in customer administration, perform a complete power-off and power-on in the ON SunStone interface with the following steps:

1. Shut the system down using the Power Off button.
2. Undeploy the powered-off server.
3. Turn on the undeployed system using the Resume button.

Detailed instructions on restarting the server can be found in the VPS ON – Restart instructions.

If you increased disk space, check whether the filesystem has been updated correctly.

• With a pre-installed OS, the system should upgradeautomatically. If it doesn’t happen, proceed to the next point.
• If you are using a custom OS or LVM, increase the disk on the server manually according to your system’s manual.

Common issues with upgrading VPS ON include:

• Upgrade didn’t happen, the parameters are the same
• System stuck or error
• Neproběhlo navýšení filesystému

Issue: The system still shows the original parameter values.

Cause: A common cause is an insufficiently thorough restart.

Solution: Perform a restart in the ON SunStone interface according to the System Restart chapter. Any other kinds of reboot are isufficient.

Issue: The system is stuck in PROLOG_FAILURE, EPILOG_FAILURE, or similar for more than 10 minutes.

Solution: Ask support to investigate. Provide the name or number of the VPS ON service, the situation that led to the error (e.g. shutdown after upgrade), and the error message.

Issue: The filesystem was not automatically increased on the pre-installed OS.

Solution: Increase the disk on the server manually according to your system’s manual.

Question: Can you do the settings in the operating system for me?
Answer: No, we do not interfere with operating systems on VPS ON.