dg-publish: true
- EBS volumes are AZ scoped, since they are often scoped to hardware
- To migrate a volume to another AZ
- Take a snapshot of that EBS
- Create EBS out of snapshot (since snapshots are stored in s3)
Across regions

Across accounts
- Use a KMS key with cross account access
- Share the encrypted snapshot with target account
- Create a copy from the snapshot in the target account with a cmk in that account
