Amazon EC2 Dedicated Host recovery
Dedicated Host auto recovery restarts your instances on to a new replacement host when certain problematic conditions are detected on your Dedicated Host. Host recovery reduces the need for manual intervention and lowers the operational burden if there is an unexpected Dedicated Host failure concerning system power or network connectivity events. Other Dedicated Host issues will require manual intervention to recover from.
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Supported instance types
Host recovery is supported for the following instance families: A1, C3, C4, C5, C5n, C6a, C6g, C6i, Inf1, G3, G5g, M3, M4, M5, M5n, M5zn, M6a, M6g, M6i, P2, P3, R3, R4, R5, R5b, R5n, R6g, R6i, T3, X1, X1e, X2iezn, u-6tb1, u-9tb1, u-12tb1, u-18tb1, and u-24tb1.
To recover instances that are not supported, see Manually recover instances that are not supported by Amazon EC2 Dedicated Host recovery.
Note
Dedicated Host auto recovery of supported metal instance types will take longer to detect and recover from than non-metal instance types.
Pricing
There are no additional charges for using host recovery, but the usual Dedicated Host
charges apply. For more information, see Amazon EC2 Dedicated Hosts
Pricing
As soon as host recovery is initiated, you are no longer billed for the impaired
Dedicated Host. Billing for the replacement Dedicated Host begins only after it enters the
available state.
If the impaired Dedicated Host was billed using the On-Demand rate, the replacement Dedicated Host is also billed using the On-Demand rate. If the impaired Dedicated Host had an active Dedicated Host Reservation, it is transferred to the replacement Dedicated Host.