AWS EC2 Concepts - keshavbaweja-git/guides GitHub Wiki
Root Device Volume
- Contains the image used to boot the instance.
- Root device volume can be
- Instance store volume: with AMI loaded from S3 bucket. By default, Instance store volume is deleted when instance is terminated
- EBS volume: with AMI loaded from EBS snapshot
Instance store backed instance

EBS backed instance

Storage

CPU architectures, processor families
| CPU Architecture | Processor Family |
|---|---|
| x86_64 | Intel |
| x86_64_mac | Intel |
| arm64 | AMD |
| arm64 | Graviton |
Hypervisors
- Xen (Intel)
- Nitro (AWS)
Instance types
| Instance type | Identifier |
|---|---|
| General purpose | M |
| General purpose - burstable | T |
| Compute optimized | C |
| Memory optimized | R, X |
| Storage optimized | I, D, H |
| Accelerated computing | P |
| DL | |
| Inf | |
| G | |
| F | |
| VT1 |