MultiCloud Classroom notes 07/Sep/2025

AWS EBS Volume types

• AWS supports the following EBS Volume types
  • General purpose: These provide balanced speed
  • Provisioned IOPS: Designed for larger iops and low latency
  • Hard disk Drives: Designed for low cost storage
• For a root disk (disk with os) we can use only ssd disk types
• For additional disks we can select all the disk types
• Decision tree for choosing ebs volume type
  
• Workload patterns:
  • General server (web, API, microservice)
    • Need > 3000 IOPS:
      • yes => gp3 with provisioned through put (upto 16000 IOPS)
      • no => gp3
  • Database server (mysql, postgres, oracle, mongo)
    • need > 16000 IOPS
      • no: gp3
      • yes: io2 (Provisioned IOPS)
  • Large sequential througput ( ETL, data lakes, logs, Hadoop)
    • what is Access frequency
      • Frequent
        • Throughput optimized HDD
      • Infrequent
        • Cold Storage (Cold HDD)
  • Cold rarerly accessed
• Lets create a linux instance with an option not to delete volume when ec2 is deleted
  • 10 gb gp3 as root ebs volumes
  • 10 gb gp3 as additional ebs volumes
• Now create one more ec2 instance and try detaching the additonal volume and attaching this volume to new instance
  • To do this both ec2 instances should be running from same zone
  • Watch classroom video
• How can i get if not the disk directly any way to get the contents of disk to an ec2 instance running on differnt zone in same region
  
• Now if the ec2 is in diffent region:
  • Create a snapshot in source
  • copy the snapshot to a differnt region
  • Using this snapshot create a new disk (EBS Volume)