Dedicated Stacks are hosted in a variety of AWS regions.
You may specify at time of Stack creation which region your Dedicated Stack should reside in. A Stack's region will affect latency of customer connections based on proximity. Users of VPC Peering will likely want their Apitble Stack in the same region as their AWS VPC, for both latency and DNS concerns.
The region of your existing Stack can be found on that Stack's page in the Aptible Dashboard.
Database Backups are copied to multiple regions for redundancy.
Updated 4 months ago