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- Distributed block storage (i.e. like hard drive or SAN)
- 4 Volume Types
- SSD
- General Purpose (gp)
- Provisioned IOPS (io)
- HDD
- Throughput Optimized (st)
- Cold (sc)
- Type Details
- General Purpose
- Minimum 100 IOPS
- Maximum 16,000 IOPS per volume
- 3 IOPS / GB
- Maximum 250MB / second per volume
- Provisioned IOPS
- Expensive
- For high IO + high throughput, critical needs, e.g. data warehouse, database
- Purchase number of IOPS / month
- Maximum 64,000 IOPS per volume
- Maximum 1,000MB / second per volume
- Throughput Optimized
- Cheap
- For linear reading and writing, e.g. media streaming
- Maximum 500MB / second per volume
- Cold
- Cheapest
- For infrequent access to large chunks of data, e.g. backup
- Maximum 250MB / second per volume
- Snapshot
- Online snapshot, snapshots can be done in real time without unmounting the volume; for root volumes it is better to take offline snapshots
- Incremental, initial snapshot only contains used data, subsequent snapshots only contain changed data
- Versioned, each snapshot has an ID and can create volume from any snapshot
- Automation, creation, deletion of snapshots can be automated using Data Life Cycle Manager
- Limits
- Maximum 16TB per volume
- Maximum 80,000 IOPS per instance
- Maximum 2,375MB / second per instance
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