Storage in Enterprise

• Local Disk Storage:
  • Can be attached to only one server at any given time
  • Which are boot/OS disks

• Network Storage:
  • Can be attached to multiple machines
  • Is not about a boot disk

• Object Storage:
  • Storage connected via http protocols

Other Considerations in Storage

• Backup:
  • Quick Recovery
  • Quick
  • Data loss should be minimal
• Archive
  • Disaster Recovery
  • Will be slow
• Hardware Type:
  • Magnetic
  • HDD
  • SSD
• Speed
• Size

Storage Solutions by AWS

• Disks:
  • Instance Store
  • Elastic Block Storage (EBS)
• Network Disks:
  • Elastic File Storage (EFS)
• Object Storage:
  • Simple Storage Service (S3)
• Backups:
  • Snapshots
• Archival:
  • Glacier
• MarketPlace:
  • Third party solutions from NetAPP, Pure Storage, EMC2

Virtual Infrastructure in AWS

• In AWS we work on virtual machines & virtual storages.

• Virtual Machines are created on Physical Servers. The Disk of the Virtual Machine can be attached from
  • Same Physical Server => Instance Store
  • Different Physical Server in the Same AZ => EBS
• In AWS, for VM (EC2) the operating system disk (os disk/root disk) will always be EBS
• User will get options of Instance Store only for additional disks (Only for some instance types)