AWS Instance Store

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 AWS Instance Store

 AWS Instance Store - 
  • Hardware storage directly attached to EC2 instance amd cannot be detached and attached to another instance 
  • Highest IOPS for any available storage
  • Ephemiral Storage (Loses data when instance is terminated, stopped or hibernated)
  • Good to buffer/cache/scratch data/temporary content 
  • AMI created from an instance does not its instance store volume preserved 
  • You can specify the instance store volumes to an instance when you launch the instance. You can't attach instance store volumes to an instance after you’ve launched it.

Raid - 

Raid 0 
  • Improve performance of a storage volume by distributing reads and write in a stripes across attached volumes 
  • If you add a storage volume you get the straight addition of throughput and iops
  • For high performance applications
Raid 1 
  • Improve data availability by mirroring in multiple volumes
  • For critical applications




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