41 lines
1.7 KiB
Markdown
41 lines
1.7 KiB
Markdown
---
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title: "ARM-AMI"
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type: concept
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tags: [AWS, AMI, ARM]
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last_updated: 2026-05-07
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---
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## Definition
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ARM-AMI refers to Amazon Machine Images (AMIs) built for EC2 instances running on ARM-based processors (Graviton/Graviton2/Graviton3). These AMIs are optimized for ARM architecture and offer better price-performance ratio compared to x86 AMIs for many workloads.
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## Key Characteristics
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- **Architecture**: ARM64 (AArch64), based on AWS Graviton processor family
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- **Performance**: Better price-performance for many workloads (web servers, containers, microservices)
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- **Cost**: Lower licensing costs (no x86 licensing fees)
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- **Availability**: Available for Amazon Linux, Ubuntu, RHEL, and other supported OSes
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- **Shared Infrastructure**: AMIs, EBS volumes, and KMS keys shared across all organization accounts
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## AMI Roadmap Context
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Per [[ctp-topic-50-ami-roadmap-for-aws-amis]], the ARM-AMI roadmap milestones:
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- **November 2022**: RHEL 9 ARM planned
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- **May 2023**: RHEL 9.4 ARM and Ubuntu 22.04 ARM
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- **Starting May 2023**: All ARM processors related to AMIs are released synchronously
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The ordering of ARM AMI releases is primarily driven by [[ADM]] (Architecture Decision Management) requirements.
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## Related Concepts
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- [[Foundation-AMI]]: CCOE-provided hardened base images on which product teams build
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- [[AMI-Sharing]]: Cross-account AMI sharing mechanism
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- [[OS-Hardening]]: Security hardening applied to AMIs
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## Connections
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- [[ctp-topic-50-ami-roadmap-for-aws-amis]] → defines ARM-AMI release roadmap
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- [[ctp-topic-26-standard-ami-build-publish-share-processes]] → foundation AMI hardening standards apply to ARM variants
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- [[ctp-topic-58-aws-ec2-image-builder]] → Image Builder used to create ARM-variant AMIs
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