[Cloud Computing]Mechanisms: Geotag_cloud computing mechanisms-优快云博客

本文介绍地理标签（Geotag）的概念及其在可信平台模块（TPM）中的作用，解释了如何通过地理标签来指定工作负载的位置，并确保虚拟服务器及工作负载运行在正确的地理位置。此外还探讨了地理标签如何支持行业法规遵从性要求，以及其在可信云资源池中的应用。

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Geotag

A geotag is a data receptacle in a trusted platform module (TPM) that holds geolocation attributes and provides the mechanism with geolocation capability. Geolocation tagging is initiated by a cloud administrator when the server is first provisioned in the data center. This allows a cloud consumer to specify the location(s) where a workload should be placed, and to verify whether virtual servers and workloads are running in the correct geographic location. The geographic location determination capability supports many industry regulatory compliance requirements. Figure 1 shows the geotag data item initialized with a GPS location.

Figure 1 - A geotag data item within a TPM

Geotags can provide extensions to Trusted Cloud Resource Pools, allowing pooling of hardware at provision time in the same geolocation. Trusted Cloud Resource Pools meet the requirements for workloads to be handled by secure VMs, including entering or leaving certain geographic regions. Compliance with data residency regulations can be complex for enterprises with very distributed cloud deployments.