Resizing an instance using OpenStack Horizon

To resize an instance using OpenStack Horizon, follow these steps:

Important

Resizing an instance will cause the instance to shut off during the process. We recommend doing a backup of your data before proceeding.

  • Under “project”, click “compute” and then “instances” in the sidebar menu.

  • In the drop-down menu to the far right of the line corresponding to the instance you want to resize, press “resize instance”.

  • Under “new flavor”, select the flavor you want.

  • Press “resize” button.

  • You will see the status of the resize in the following page.

  • When it says “Confirm or Revert Resize/Migrate”, login to the instance and verify that it worked as intended (meaning the instance is working as before but with the new flavor).

  • If you are happy with the result, press “Confirm Resize/Rigrate” in drop-down to the far right (it should be pre-selected). This will finalise the process and make it permanent.

  • If you are unhappy (for some reason the process failed), you are able to instead press “Revert resize/Migrate” (available in the drop-down). This will revert the process.

The process is now complete.