Re:AWS announces new region in Canada
by discodave on Friday December 09, 2016 @12:34AM
(#13136890)
S3, Dynamo and some other servicea always have three AZs, sometimes they only expose 2 EC2 AZs to save money in new/small regions. James Hamilton just announced that they were going to stop doing this but I guess this region was already under construction.
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Aurora requires 3 as well, in order to establish quorum for leader elections in case of network partitions.