Reservations
Booking an capacity of the service in advance for using for an long period of time Suitable when we have very consist service usage (Autoscaling, etc. is not required)
Reserved Instances: Azure Virtual Machines
Reserved Capacity: DBs, Azure Storage Services, Databricks Clusters, etc.
Software Plans: Red Hat, SUSE Linux, etc.
Reservations are made for 1 or 3 years
Spot Pricing for VM
Buy VM for Azure as normal but it’s an Spot VM
Microsoft can take away this capacity at anytime
Can set maximum price after purchase (If price above max price VM is evicted)
Best of interruptible workload (Batch Processing, Non critical processing, etc.)
Hybrid Use Benefit
Allows to use existing on premise licenses for services on the cloud
When moving an on-premises Device to the cloud isn’t of paying again for the OS use the already existing one