MultiCloud Classroom notes 19/Oct/2024

Azure Disk Types

• Standard HDD:
  • This is Hard disk drive
  • It has low cost and performance lower than SSD’s
• Standard SSD
  • This is standard SSD Drive
• Premium SSD
  • It comes in two generations
  • Premium SSD
  • Premium SSD v2
• Ultra SSD
  • These are faster disks
    
• For pricing related stuff watch classroom video.
• Free tier: 2 Premium 64 GB Disks per month

AWS EBS Types

• General Purpose
  • gp2
  • gp3 (default):
• Provisioned IOPS:
  • io1
  • io2
• Harddisk drive
  • Cold HDD
  • Throughput Optimizied HDD
• Magnetic
• Refer Here for official docs
• Refer Here for ssd comparision

EBS Snapshots

• Snapshot is backup of a disk taken at a particular time period
• Snapshot belongs to a region
• Create an ec2 instace with two volumes (root and ebs)
• if we need same disk in other zone
  • Create a snapshot
  • using snapshot create ebs volume in other zone
• if we need same disk in other region
  • Create a snapshot
  • copy the snapshot to target region
  • using snapshot create ebs volume in required zone
    
• If we take a Root Volume snapshot, we can use it to create ec2 instances (AMI => root volume snapshot + metadata)

Azure Disk snapshots

• Azure Disks also are similar, Watch classroom recording