Storage in AWS

• AWS primarily supports

  • Virtual Disk Storage primarily using Elastic Block Storage (EBS)
  • Network Attached Storage (NAS) or Storage Area Network (SAN) using Elastic File System
  • Blob Storage (Storage over https) using Simple Storage Service (S3)

• Depending on the storage needs service differs. Working on Storage disks two critical factors are

  • Size
  • Speed

• AWS Free tier plans give the following storage

  • EBS has some free areas
  • S3 has some free areas
  • EFS has some free areas

• Storage is relatively cheaper service.

• Storage is categorized as two types

  • Disk storage:
    • Always has some filesystem
  • Object Storage
    • Directly user urls to upload/download.

• Disk storage is linked to Availability Zones.

• Object Storage is linked to Region.

• Disks are referred as volumes in AWS.

• EBS Volume creation image below or asks for AZ in which volume has to be created.

• EFS also has AZ dependency

• While creating s3 buckets we deal with regions

Disk or Volume Storages in AWS

• Disks can be attached to Servers/machines, In the case of AWS Volumes can be attached to EC2 instances.
• Disks can be attached to multiple servers but not at a time, In the same AWS Volumes can be attached to ec2 instances in the Same AZ but one at a time.
• To create the DISKs/Volumes in AWS we have two kinds of Disks
  • Elastic Block Storage
  • Instance Storage.