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"Availability zones are permuted randomly for each customer" This statement is false. AZs map directly to physical facilities. If you and I both ask for instan
by SpikeGronim 15y ago
"Availability zones are permuted randomly for each customer"
This statement is false. AZs map directly to physical facilities. If you and I both ask for instances in us-east-1b they will have lower ping times than if one of us has an instance in us-east-1c.
Disclaimer: I used to work for AWS.
- amock 15y agoAccording to http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/us... "Availability Zones are not the same across accounts."
- SpikeGronim 15y agoWell then I was wrong. Apologies.
- justinsb 15y agoIf you're correct, that would be _very_ interesting. The AWS forums are full of statements to the contrary, I thought from AWS employees. The status updates never mention the particular zone (I presumed because the names don't match for different people.) The FAQ says this: "Q: How can I make sure that I am in the same Availability Zone as another developer? We do not currently support the ability to coordinate launches into the same Availability Zone across AWS developer accounts." http://aws.amazon.com/ec2/faqs/#How_can_I_make_sure_that_I_am_in_the_same_Availability_Zone_as_another_developer http://aws.amazon.com/ec2/faqs/#How_can_I_make_sure_that_I_a... If AZs map directly to physical facilities, how does that FAQ make sense? We're straining to read the tea-leaves here, rather than AWS just telling us what they've built.