Stopping a compute instance

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There are four different ways you can stop a compute instance:

  • Shelve will prompt the operating system to shutdown gracefully, power off the virtual machine, preserve the disk and deallocate the compute resources (CPU and RAM) from our compute nodes. Instances in this state are not charged for, as their compute aspect is not operational. We only charge for the disks (for example: root disk or additional volumes connected to it), as we still need to retain the data while the instance is powered off. When re-started it may be allocated to a different compute node.
  • Shut off will prompt the operating system to shutdown gracefully, power off the virtual machine, but preserve the compute resources (CPU and RAM) allocated on a compute node. Instances in this state are still charged as if they were running. When re-started it will continue to be hosted on the same compute node.
  • Pause will store the memory state of the compute instance in memory and then freeze the virtual machine. Instances in this state are still charged as if they were running. When re-started it will resume its operation exactly where it was, except if the physical compute node was restarted (for example: a power failure) and its memory content lost.
  • Suspend will store the memory state of the compute instance on disk and then shut down the virtual machine. Instances in this state are still charged as if they were running. When re-started it will resume its operation exactly where it was, but will take longer to start because it needs to read its memory state from disk.