quoting AWS:

AWS has the concept of a Region, which is a physical location around the world where we cluster data centers. We call each group of logical data centers an Availability Zone. Each AWS Region consists of multiple, isolated, and physically separate AZs within a geographic area.

I'm confused by the meaning of "logical data centers" here: if AZ are physically separated data centers, I would assume the ressources are physical too, wouldn't be more appropriate to say "physical data centers"? or maybe am I wrong on the definition of logical here ?

CodePudding user response：

AWS availability zone logical or physical?

When they say logical datacenter it's like saying a logical model which describes the physical datacenter without regarding to how they are physically implemented, but giving you a clear perspective how they operate.

In contrast, a physical datacenter is like model that represents how the actual datacenter is implemented. Hence, this is the main difference between logical and physical. But the two terminologies are used interchangeably a little bit.

That being said, we use logical when we are designing/describing the architecture of the physical model

CodePudding user response：

An Availability Zone (AZ) is one or more discrete data centers with redundant power, networking, and connectivity in an AWS Region.

Ref: https://aws.amazon.com/about-aws/global-infrastructure/regions_az/