All technological notes.
Elastic Block Store (EBS) - EC2Elastic Block Store (EBS) - Block
Free tier: 30 GB of free EBS storage of type General Purpose (SSD) or Magnetic per month
For user who needs a virtual hard drive attached to a VM.

It’s a network drive (i.e. not a physical drive)
It’s locked to an Availability Zone (AZ)
Have a provisioned capacity (size in GBs, and IOPS)
Can copy snapshots across AZ or Region
EBS Snapshot Archive
Recycle Bin for EBS Snapshots
EC2 Instance Store - high-performance, risk, temporary block-level storageIf you need a high-performance hardware disk, use EC2 Instance Store
EC2 Instance Store
Elastic File System (EFS) - nas,multiple mountedAWS Elastic File System (EFS)
Highly available, scalable, expensive (3x gp2), pay per use, no capacity planning

EFS Infrequent Access (EFS-IA)EFS Infrequent Access (EFS-IA)
Amazon Simple Storage Service (S3) - Object

Amazon FSx – 3rd party, high-performanceFSx for LustreFSx for Windows File ServerFSx for NetApp ONTAPAmazon FSx for Windows File ServerAmazon FSx for LustreAWS
User
EBS volumes:
EBS Snapshots for backups / transferring EBS volumes across AZAMI: create ready-to-use EC2 instances with our customizations
EC2 Image Builder: automatically build, test and distribute AMIsEC2 Instance Store:
EFS: network file system, can be attached to 100s of instances in a region
EFS-IA: cost-optimized storage class for infrequent accessed filesFSx: 3rd party high-performance file systems
FSx for Windows: Network File System for Windows serversFSx for Lustre: High Performance Computing Linux file system