Simple Notification Service (SNS)
Kinesis + MQ
Databases & Analytics
  • When you hibernate an instance, EC2 signals the operating system to perform hibernation (suspend-to-disk).
  • Hibernation saves the contents from the instance memory (RAM) to your Amazon EBS root volume.
  • EC2 persists the instance's EBS root volume and any attached EBS data volumes.
  • When you start your instance:
    • The EBS root volume is restored to its previous state.
    • The RAM contents are reloaded.
    • The processes that were previously running on the instance are resumed.
    • Previously attached data volumes are reattached and the instance retains its instance ID.
  • It can be useful for long-running applications, which need to save the RAM state or services which take a lot of time to initialise.


  • Supported instance families:
    • C3, C4, C5
    • I3
    • M3, M4, M5, M5a, M5ad
    • R3, R4, R5, R5a, R5ad
    • T2, T3, T3a
  • Instance RAM:
    • RAM size must be less than 150 GB.
  • Instance size:
    • It is not supported for bare metal instances.
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