3 ms·

Or how about no AZ where possible using a serverless architecture/lambda?

• scarface74 7y ago
  “Serverless” is not magic. The minute you need to attach to your VPC (I refuse to say “run inside your VPC, that’s not correct), you still have to worry about multi AZ. If you are using RDS, as opposed to DynamoDB, you have to configure it for multi AZ. I use lambda all of the time and I’m definitely not afraid of the “lock in” boogeyman, but I always architect my lambda’s to make moving away from lambda to either Fargate or just an EC2 instance as easy as possible. On another note, it’s just as easy to architect your regular old EC2 instances running stateless servers to be AZ failure resilient. Just set up an autoscaling group with a min/max of 1 and configure it to work across multiple AZ’s. Also lambda comes with its own set of limitation - maximum runtimes of 15 minutes, cold start times, temporary storage space of only a half a gig, limited CPU/memory options, etc.