Amazon Storage as a Service

Recall IaaS

• Server as a Service• Storage as a Service• Connectivtiy as a Service

Amazon’s Storage as a Service

• Amazon Simple Storage Service (Amazon S3)• Amazon Elastic Block Store (EBS)

Amazon Elastic Block Store (EBS): Features

• EBS can provide an persistant storage to an EC2 instance

• “EBS volume data is replicated across multiple servers”• A EBS volume can be up to 1TB. You can attache

multiple EBS volume to your instance (For this course, we only use a capacity allowed by the

free usage tier). • A EBS volume can be easily ported to another instance• EBS IO rates can be even faster than local disk IO

Referece: http://aws.amazon.com/articles/1663

EBS: How to use

• 1. Create a volume with a proper size (Say 20GB for this course).

• Attach this EBS volume to your EC2 instance• Format your EBS volume• Mount the volume• Move data to this volume• Create snapshots of the EBS volume• Instantiate new volume from a snapshots

Create EBS Volume

Attach ESB Volume to EC2 Instance

Format EBS Volume

#sudo mkfs –t ext4 /dev/sdf

Mount EBS volume

#sudo mkdir /vol

#sudo mount /dev/sdf /vol #echo "/dev/sdf /vol ext3 defaults 0 0" | sudo tee –a /etc/fstab

Create snapshot of the EBS Volume

Amazon Simple Storage Service (S3)

• Amazon S3 provides storage as a service to store and retrieve any amount of data at any time, from anywhere on the web.

Figure from docs.amazonwebservices.com