• Volume Network Drive (provides low latency access to data)
• Can only be mounted to 1 instance at a time (except EBS multi-attach)
• Bound to an AZ
• Must provision capacity in advance (size in GB & throughput in IOPS)
• By default, upon instance termination, the root EBS volume is deleted and any other attached EBS volume is not deleted (can be over-ridden using DeleteOnTermination attribute)
• To replicate an EBS volume across AZ or region, need to copy its snapshot
• EBS Multi-attach allows the same EBS volume to attach to multiple EC2 instances in the same AZ
• New EBS volumes are raw block storage and do not contain any partition or file system. You need to login to the instance and format the EBS volume with a file system for it to be usable.

<aside> 💡 DeleteOnTermination attribute can be updated for the root EBS volume for a running instance only from the CLI. It can be done from the console only if the instance is stopped.

</aside>

Volume Types

General Purpose SSD

• Good for system boot volumes, virtual desktops
• Storage: 1 GB - 16 TB
• Max IOPS: 16,000
• gp3
  • 3,000 lOPS baseline (max 16,000 - independent of size)
  • 125 MiB/s throughput (max 1000MiB/s - independent of size)
• gp2
  • Burst IOPS up to 3,000
  • 3 IOPS per GB
  • Max IOPS: 16,000 (at 5,334 GB)

Provisioned IOPS SSD

• Optimized for Transaction-intensive Applications with high frequency of small & random IO operations. They are sensitive to increased I/O latency.
• Maintain high IOPS while keeping I/O latency down by maintaining a low queue length and a high number of IOPS available to the volume.
• Supports EBS Multi-attach (not supported by other types)