What is Amazon EBS (Elastic Block Store)?

Amazon Elastic Block Store is a cloud-based block storage system provided by Amazon Web Services (AWS) that is best used for storing persistent data.

What Are AWS EBS Volumes?

Amazon Elastic Block Store (Amazon EBS) could be a raw block-level storage service designed to be used with Amazon EC2 instances. when mounted to Amazon EC2 instances, Amazon EBS volumes is used like any different raw block device: they'll be formatted with a particular filing system, host operating systems and applications, and have snapshots or clones made of them.

Two Types of AWS EBS Volumes

1. SSD-backed volumes 
2. HDD-backed volumes.

SSD-backed volumes:-

SSD-backed volumes are optimized for transactional workloads, wherever the quantity performs a lot of small read/write operations. The performance of such volumes is measured in IOPS (input/output operations per second).

AWS users enjoy the ability to create EBS volumes that range in size from 1 GB up to 1 TB, create snapshot backups, and to create volumes from snapshots with a couple of clicks, with optional encryption at no extra charge.

The following instances support instance store volumes that use solid state drives (SSD) to deliver high random I/O performance: C3, G2, I2, M3, R3, and X1.

HDD-backed volumes:-

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.

The following instances offer non-volatile memory express (NVMe) SSD instance store volumes: C5d, I3, F1, M5d,,p3dn.24xlarge R5d, and z1d.

Amazon EBS security:-

Amazon EBS provides encryption for data at rest, both for volumes and snapshots, to help the IT team meet security and compliance requirements. You can use Amazon-managed encryption keys or create and manage keys with AWS Key Management Service.

5 Functions of AWS EBS Volumes You're Not Using 

1. RAID
2. Tuning Amazon EBS Performance
3. Increasing Amazon EBS Volume Size While in Use
4. Amazon Cloud Watch Events for Amazon EBS
5. Sharing Snapshots Across AWS Accounts

Learn:  AWS Online Training