1) 5 days (according to the author) 2) Obviusly the cloud is better in that case 3) You can’t always upgrade on aws eigher if you have paid for a reserved inst

1) 5 days (according to the author) 2) Obviusly the cloud is better in that case 3) You can’t always upgrade on aws eigher if you have paid for a reserved instance: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ri-modifying.html https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ri-modif...