EBS Multi-Attach - io1/io2 family¶

• Attach the same EBS volume to multiple EC2 instances in the same AZ
• Each instance has full read&write permissions to the volume
• Use case
  • Achieve higher application availability in clustered Linux applications (ex: Teradata)
  • Applications must manage concurrent write opperations
• Must use a file system that's cluster aware:
  • Not XFS, EX4 etc