AWS EBS - Elastic Block Store
AWS EBS - Elastic Block Store
In this article, we will see that what is AWS EBS - Elastic Block store.
What is AWS EBS?
Amazon Elastic Block Store (Amazon EBS) is a raw block-level storage service designed to be used with Amazon EC2 instances. When mounted to Amazon EC2 instances, Amazon EBS volumes can be used like any other raw block device. They can be formatted with a specific file system, host operating systems and applications, and have snapshots or clones made from them.
Every Amazon EBS volume that is provisioned will be automatically replicated to other storage devices in the same Availability Zone inside the AWS region to offer redundancy and high availability (guaranteed 99.999% by Amazon).
AWS also offers seamless encryption of data at rest (both boot and data volumes) using Amazon-managed keys or keys customers create through Amazon Key Management Service (KMS).
Types of EBS Volumes
There are two Amazon EBS volume type categories: SSD-backed volumes and HDD-backed volume.
SSD-backed volumes are optimized for transactional workloads, where the volume
performs a lot of small read/write operations. The performance of such volumes
is measured in IOPS (input/output operations per second).
HDD-backed volumes are designed for large sequential workloads where
throughput is much more important (and the performance is measured with
MiB/s). Each category has two subsets.
Creating a new EBS volume
Login to an AWS account and select the desired region in the top right corner of the browser.
Click on “Services” at the top left corner of the screen and select “EC2”.
In the left navigation pane, under “EC2 Dashboard,” locate the “Elastic Block Store” subsection and select “Volumes.” A dialog displays. Click “Create Volume”.
In the pop-up window, customize the volume (type, size, IOPS or throughput), select the desired Availability Zone, and decide whether or not to use encryption. Click “Create”
Attach an EBS Volume to an EC2 Instance
To attach an EBS volume to an Amazon EC2 instance, right-click it and select “Attach”.
Please note that the volume will need to be formatted inside the operating system being used.
Create a Snapshot of an EBS Volume
Go to Snapshots Tab in Left side and Click on “Create Snapshot”
Click on Create Snapshot
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