AWS 對 ARM 平台的採用速度比想像中快，昨天發表了 bare metal 版本 a1.metal：「Now Available: Bare Metal Arm-Based EC2 Instances」。
相較於 x86 系列提供的 bare metal，ARM 這邊提供的機器不算大台，只有 16 核心與 32 GB 的記憶體，所以主要的用途應該是在於可以存取系統底層的資訊，或是因為軟體的授權不支援虛擬化而需要租用 bare metal：
- need access to physical resources and low-level hardware features, such as performance counters, that are not always available or fully supported in virtualized environments,
- are intended to run directly on the hardware, or licensed and supported for use in non-virtualized environments.
這次的 a1.metal 共八區可以用：
You can start using a1.metal instances today in US East (N. Virginia), US East (Ohio), US West (Oregon), Europe (Ireland), Europe (Frankfurt), Asia Pacific (Tokyo), Asia Pacific (Mumbai), and Asia Pacific (Sydney).