EC2 Volume Types
Understand the concepts of EC2 Volume Types below.
SOA-C01 exam is updated to AWS Certified SysOps Administrator – Associate (SOA-C02).
Amazon EBS volume
- is a block-level storage device
- can attach to a single EC2 instance
EBS volume types:
They differ in performance characteristics and price, and are briefed below
- SSD storage is optimized for transactional workloads for high IOPS. 2 SSD volume options
- EBS Provisioned IOPS SSD (io1) – For latency-sensitive workloads, requiring minimum-guaranteed IOPS. Pay separately for provisioned IOPS
- EBS General Purpose SSD (gp2) –For general use. Balance between cost and performance.
- HDD storage for throughput-intensive workloads. 2 types
- Throughput Optimized HDD (st1) –For frequently accessed, throughput-intensive workloads.
- Cold HDD (sc1) – For less frequently accessed, throughput-intensive workloads.
| Solid-State Drives (SSD) | Hard Disk Drives (HDD) | |||
| API Name | gp2 | io1 | st1 | sc1 |
| Volume Size | 1 GiB – 16 TiB | 4 GiB – 16 TiB | 500 GiB – 16 TiB | 500 GiB – 16 TiB |
| Max. IOPS/Volume | 16,000 | 64,000 | 500 | 250 |
| Max. Throughput/Volume | 250 MiB/s | 1,000 MiB/s | 500 MiB/s | 250 MiB/s |
| Max. IOPS/Instance | 80,000 | 80,000 | 80,000 | 80,000 |
| Max. Throughput/Instance | 1,750 MiB/s | 1,750 MiB/s | 1,750 MiB/s | 1,750 MiB/s |
| Dominant Performance Attribute | IOPS | IOPS | MiB/s | MiB/s |
The default EBS volume type is gp2.
