postgresql - Move RDS instance from EC2-Classic to VPC -


i migrating production system ec2-classic vpc platform.

all done except rds instance, still in ec2-classic. original plan migration downtime: shutdown instances, take database snapshot, create new instance in vpc snapshot (rds "restore snapshot" feature).

unfortunately when tried realized cannot restore type of instance want. when click "restore" amazon offers me limited number of options:

  • expensive db.m3, db.r3 instances
  • previous generation db.t1, db.m1, db.m2 instances

ideally i'd create db.t2 instance, possible somehow?

also, there way migrate 0 downtime? far i've found nothing in amazon docs.


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