If your server is not on a contract term (and most servers with us aren't) you can upgrade your plan or add disk space at any time. It's always a good idea to be have some excess resources over and above your 'standard' usage so that your server can handle a surprise increase in traffic or a more intensive workload. We may also ask you to upgrade your server if you are regularly using more resources than your plan includes (also known as bursting or excessive CPU cycles) so you don't impact other customers on the same hardware node.
All server upgrades are handled through the Upgrade tab on the server's management page in the SiteHost Control Panel.
In early 2024, we started migrating to a new virtualisation platform which enabled upgrading cores, memory, and disk space without requiring a reboot. We refer to this as a live upgrade because it allows you to scale up your plan without the impact of downtime.
A message will be displayed on the upgrade page if this feature is supported by your server.
If your server isn't live upgradable, the changes will be applied during the next reboot. You can discard the changes before rebooting, if you want to skip the staged resource changes.
A key characteristic of our new new virtualisation platform is that increasing the size of your disk is a permanent change, and can't be reversed. If you think you might downgrade your plan in the future you should consider not applying the disk upgrade, or only applying some of the extra space after skipping the upgrade.