The Amazon SDK for JavaScript v2 has reached end-of-support. We recommend that you migrate to [Amazon SDK for JavaScript v3](https://docs.amazonaws.cn//sdk-for-javascript/v3/developer-guide/). For additional details and information on how to migrate, please refer to this [announcement](https://amazonaws-china.com/blogs//developer/announcing-end-of-support-for-aws-sdk-for-javascript-v2/).

# Resilience for this Amazon Product or Service
Resilience

The Amazon global infrastructure is built around Amazon Web Services Regions and Availability Zones. 

Amazon Web Services Regions provide multiple physically separated and isolated Availability Zones, which are connected with low-latency, high-throughput, and highly redundant networking. 

With Availability Zones, you can design and operate applications and databases that automatically fail over between zones without interruption. Availability Zones are more highly available, fault tolerant, and scalable than traditional single or multiple data center infrastructures. 

For more information about Amazon Regions and Availability Zones, see [Amazon Global Infrastructure](http://www.amazonaws.cn/about-aws/global-infrastructure/).

This Amazon product or service follows the [shared responsibility model](http://www.amazonaws.cn/compliance/shared-responsibility-model/) through the specific Amazon Web Services (Amazon) services it supports. For Amazon service security information, see the [Amazon service security documentation page](https://docs.amazonaws.cn/security/?id=docs_gateway#aws-security) and [Amazon services that are in scope of Amazon compliance efforts by compliance program](http://www.amazonaws.cn/compliance/services-in-scope/).