AWS Cloud Training ELASTIC BLOCK STORE

 What is Elastic Block Store (EBS)?

 EBS storage is allocated in volumes

• A volume is a 'virtual disk' (size: 1GB - 1TB)
• Basically, a raw block device
• Can be attached to an instance (but only one at a time)
• A single instance can access multiple volumes

 Placed in specific availability zones

• Why is this useful?
• Be sure to place it near instances (otherwise can't attach)

 Replicated across multiple servers

• Data is not lost if a single server fails
•  Amazon: Annual failure rate is 0.1-0.2%

 EC2 instances can have an EBS volume as their root device ("EBS

boot")

• Result: Instance data persists independently from the lifetime of the instance
•  You can stop and restart the instance, like suspending and resuming a laptop

 You won't be charged for the instance while it is stopped (only

for EBS)

•  You can enable termination protection for the instance
•  Blocks attempts to terminate the instance (e.g., by accident) until termination protection is disabled again

CREATE EBS VOLUMES

Once you are in the EC2 page, click Volumes under ELASTIC BLOCK STORE

on the left pane.

Once you are in the Volumes page, click on Create Volume to create a new

volume.

  

  Select Volume Type from the drop down list.

Specify Snapshot ID if you want your new volume to be copied data from the

snapshot, otherwise leave blank.

And select encrypt option if you want to encrypt your newly creating volume,

otherwise leave un selected.

Then click on create after specifying the values required.

Your volume will start creating.

DELETE EBS VOLUME

Once you logged in to AWS, go to EC2 section then go to Volumes section.

Click the volume which you want to delete and click on actions.