• EBS Volume Types
  • SSD
    • General Purpose SSD (GP2)
    • Provisioned IOPS SSD (IO1)
    • Throughput Optimized HDD(ST1)
  • Magnetic
    • Cold HDD(SC1)
    • Magnetic (Standard)

---

• Elastic Block Storage
• Think of it as virtual disk in the cloud
• Allows to create storage volumes and attach them to EC2 instance.
• Once atttached, you can create a file system on these volumes (called root device volume), run a db, or use as a simple block device.
• EBS volumes are placed in a specific availability zones, where they are automatically replicated to protect you from the failure of a single component.

EBS Volume Types

SSD

General Purpose SSD (GP2)

• For general use, balances both price and performance.
• Ratio of 3 IOPS per GB with upto 10,000 IOPS and the ability to burst upto 3000 IOPS for extended periods of time for volumes at 3334GiB and above.

  Provisioned IOPS SSD (IO1)

• Designed for I/O intensive applications such as large relational or NoSQL db.
• Use if you need more than 10,000 IOPS.
• Can provision upto 20,000 IOPS per volume.

  Throughput Optimized HDD(ST1)

• Big Data
• Data Warehouses
• Log Processing
• Cannot be a boot volume

Magnetic

Cold HDD(SC1)

• Lowest cost Storage for infrequent accessed workloads.
• File Server
• Cannot be a boot volume.

  Magnetic (Standard)

• Legacy
• Lowest cost per GB of all EBS types.
• Bootable storage.
• Ideal for workloads where data is accessed infrequently, and low cost is important.