EBS?

• Elastic Block Store Volume: network drive can attach to instances
  => persist data, after termination
• mounted to one instance at a time
• network drive (use network to communicate the instace)
• locked to an Availability Zone

Same Availability Zone with the EC2 Instance

Attach Volume to the EC2 Instance

Attacked Volumes

EBS Snapshots

• Make a backup (snapshot) of your EBS volume at a point in time
• detach -> snapshot
• copy across AZ or Region

Features

1. EBS SnapShot Archive - 75% cheaper but Takes 24~72 hours for restoring
2. Recycle Bini for EBS Snapshots - retein deleted snapshots recover from accidental deletion

• specify retention

move to any AZ zone you want

Create Volume from Snapshot

Recycle Bin

Recover from Recycle Bin