Doesn't matter what the service is. The features are used and therefore valued by two different audiences (who may in some circumstances be the same individuals

Doesn't matter what the service is. The features are used and therefore valued by two different audiences (who may in some circumstances be the same individuals wearing different hats). Live migration: platform ops. Fast boot: platform users. The platform ops people want to offer the best service possible to the platform users. Fast boot is a feature users may want for their services, so the operators want to offer it. It's directly user-facing, and is a feature users can evaluate on when selecting the platform. The platform ops people also want to offer high uptime and good performance. So behind the scenes they use live migration to mitigate host risk and balance load. Live migration is not user-facing, and is not a feature users can or should evaluate on when selecting the platform, because they shouldn't have to care. > what kind of service would need to start fast and be able to migrate? For ops, all VMs need to be able to migrate. For users, some services need fast boot. Therefore all services that need fast boot also need to migrate.