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0 pointsdeathanatos2y ago0 comments

> A cluster represents a distinct physical infrastructure that is housed in a data center.

> Google designs zones to minimize the risk of correlated failures caused by physical infrastructure outages

And they have stated that the flood "caused a multi-cluster failure".

> Zones should be considered a single failure domain within a region.

(—GCP's documentation.)

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illumin82y ago

I guess you just discovered the difference between a GCP Zone and an AWS Availability Zone.

By definition, AWS availability zones do not share fault domains, other than a geographic region up to hundreds of miles wide. Even for services used by multiple AZs, such as transit to the Internet and other regions, there are two transit centers operating in separate fault domains.

In contrast, many GCP Zones share the same physical datacenter. What they are actually providing you are simply different racks, rows of racks, or rooms in a single physical facility. Caveat emptor.

sitkack2y ago

"should be considered" -> we would like you to think

Zones are an artificial construct.

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