Elastic Block Storage
To attach an EC2 Server as storage and boot volumes
Types :
- General Purpose SSD (gp3)
- General Purpose SSD (gp2)
- Provisioned IOPS SSD (io1)
- Provisioned IOPS SSD (io2)
- Cold HDD (sc1)
- Throughput Optimized HDD (st1)
- Magnetic (standard)
| Type | IOPS/Data | IOPS/Throughput per Volume | Durability | Use Case |
|---|---|---|---|---|
| GP2 , GP3 | 3 IOPS/GiB | 16000 IOPS | 99.9% | Boot Disks, General Apps |
| IO1 | 50 IOPS/GiB | 64000 IOPS | 99.9% | OLTP , Latency sensitive |
| IO2 | 500 IOPS/GiB | 64000 IOPS | 99.999% | OLTP , Latency sensitive |
| ST1 | - | 500MB/s Throughput | 99.9% | Big Data, Data Warehouse, ETL, Cant be a boot Volume |
| SC1 | - | 250 MB/s Throughput | 99.9% | less frequently accessed data, Cant be a boot Volume, LOWEST COST |
Snapshots
- Point in Time Copy of the EBS Volume
- Encrypted Snapshots → Encrypted EBS Volumes
- Unencrypted Snapshots → Unencrypted Volumes