One year ago  Akamai  rolled out warm migrations to the  Linode  platform for both data center and host migrations, and resizing operations. During a traditional cold migration, the target Linode is shut down, its data copied to a new host, and the new Linode booted. A warm migration differs from a traditional cold migration in that the target Linode continues running until the Linode is synced to a new host. At that point, the Linode powers down, and because the local NVMe data is mirrored one-to-one on the new host, the new Linode boots exactly the same as it would a reboot on the previous host. If a resize is necessary, the resize can happen on the new host while the Linode is powered down and immediately booted back up. We pioneered this new technology for two reasons, both crucial to combatting customer downtime, or the time a Linode is occupying space but is powered down.…