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Regions, Zones and Resouces

Google Cloud Platform is organized into Regions and Zones

Regions are independent geographic areas that consist of zones

A zone is is a deployment area for Google Cloud Platform resources (like Compute Engine, VPC) with in region.Think of a zone as a single failure domain within a region. In order to deploy
fault-tolerant applications with high availability, you should deploy your applications
across multiple zones in a region to help protect against unexpected failures.

To protect against the loss of an entire region due to natural disaster, you should have
a disaster recovery plan and know how to bring up your application in the unlikely
event that your primary region is lost.

Zonal resources

 Zonal resources operate within a single zone. If a zone becomes unavailable, all of the
zonal resources in that zone are unavailable until service is restored.
● Google Compute Engine VM instance resides within a specific zone.

Regional resources

 Regional resources are deployed with redundancy within a region. This gives them
higher availability relative to zonal resources

Multi-regional resources

 A few Google Cloud Platform services are managed by Google to be redundant and
distributed within and across regions.These services optimize availability,
performance, and resource efficiency. The following services have one or more multi-regional
deployments in addition to any regional deployments:
● Google App Engine and its features
● Google Cloud Datastore
● Google Cloud Storage
● Google BigQuery

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