I am investigating disaster recovery for an RDS database.
If I want to use a snapshot or point-in-time recovery for my DB instance, naturally a new instance is created.
My instance is a reserved instance, would the resulting instance also be a reserved instance or an on-demand instance? Or can I make the new instance use the reserved instance and then delete the old one?
Reservations aren't tied to specific servers. Your current server isn't really a "reserved instance". It is simply an instance that matches your reservation, thus you are being charged less. If you removed it and created another server that matches your reservation, you would get the price discount on the new instance.