4 ms·
BTW, if nothing changed the last year or two, then even if you want to run in a single AZ, but also to have (automatically) replicated RDS instance, then I beli
by aflukasz 3y ago
BTW, if nothing changed the last year or two, then even if you want to run in a single AZ, but also to have (automatically) replicated RDS instance, then I believe the replica MUST be in another AZ. Meaning that any potential failover puts you in exactly that position you have mentioned - apps running in one AZ, database in the other. Suddenly you pay 0.01USD/GB for transfer between those, billed in each direction separately.
- sgarland 3y agoCorrect. The same thing also happens if you use the Blue/Green functionality to do an upgrade – unless you specify (and even then, I'm not sure if you can do so), the Blue instance will be in a different AZ than Green.