AWS drs: Document arm64 architecture validation for recovery instance type
Summary
Adds a note that recovery instance type must match source processor architecture and that DRS validates architecture before launch, plus arm64 AMI/UEFI guidance in the launch template AMI rule.
Security assessment
Describes architecture-matching validation for launch success; it is operational compatibility guidance, not a security control or vulnerability remediation.
Evidence
+The recovery instance type must use the same processor architecture as the source server. For an `arm64` source server, choose an AWS Graviton instance type. Elastic Disaster Recovery validates the architecture before launch. The launch fails if the instance type, instance requirements, or Amazon Machine Image (AMI) do not match.
Diff
diff --git a/drs/latest/userguide/ec2-key-considerations.md b/drs/latest/userguide/ec2-key-considerations.md index 1f2744e68..973fd259b 100644 --- a//drs/latest/userguide/ec2-key-considerations.md +++ b//drs/latest/userguide/ec2-key-considerations.md @@ -12,0 +13,4 @@ Review the following key rules and interactions before you modify an EC2 launch +###### Note + +The recovery instance type must use the same processor architecture as the source server. For an `arm64` source server, choose an AWS Graviton instance type. Elastic Disaster Recovery validates the architecture before launch. The launch fails if the instance type, instance requirements, or Amazon Machine Image (AMI) do not match. + @@ -35 +39 @@ Review the following key rules and interactions before you modify an EC2 launch - 13. **Launch template AMI** – Make sure your launch template AMI matches the boot mode of your source server. If the source uses Unified Extensible Firmware Interface (UEFI), the chosen AMI must support UEFI. + 13. **Launch template AMI** – Make sure your launch template AMI matches the boot mode of your source server. If the source uses Unified Extensible Firmware Interface (UEFI), the chosen AMI must support UEFI. For an `arm64` source server, use an `arm64` AMI, or remove the AMI override so that Elastic Disaster Recovery creates an architecture-matched AMI. An `arm64` AMI must use UEFI boot mode; if you leave the AMI boot mode unset, Amazon EC2 uses UEFI on Graviton instance types.