Disclosure: I work for AWS building cloud infrastructure. I wouldn't assume that VM migration does not exist in AWS. The overall design and implementation of G

Disclosure: I work for AWS building cloud infrastructure. I wouldn't assume that VM migration does not exist in AWS. The overall design and implementation of Google's infrastructure somewhat mandated the development live migration support from day one. AWS was designed and built differently, and some types of events that force live migration in GCE do not exist in AWS. One specific example from Google's VM Live Migration At Scale paper [1] is "Regular maintenance on the power infrastructure in our data centers requires powering down subsets of machines for extended periods of time". The power infrastructure at AWS is designed to be redundant and concurrently maintainable, which removes a significant need for workload mobility within the datacenter. Personally, I think it was a very good idea to turn the thing that had to be built to launch into a marketed differentiated feature. But that doesn't mean that AWS doesn't have an ability to live migrate some workloads if it is able to do so without disrupting customers, or if it delivers a better experience than alternatives (e.g., instance degrade notices). [1] https://dl.acm.org/doi/10.1145/3186411.3186415 https://dl.acm.org/doi/10.1145/3186411.3186415