To successfully meet the challenges related to storing data in the cloud, Amazon provides a storage service to be used with your EC2 instances, called Amazon Elastic Block Storage or Amazon EBS. This service provides highly available block level storage volumes. In this what is AWS EBS in Amazon tutorial, you will get an in-depth understanding of AWS Amazon EBS Volume.
In this blog on AWS EBS, we will learn all about EBS and cover the following topics in the same order:

Amazon EBS एक अमेज़न वेब सर्विस है इस पोस्ट में हम इसके बारे में अच्छे से जानेंगे What is Amazon EBS in Hindi की Amazon EBS किसे कहते है।

What is Amazon EBS in Hindi?

Amazon Elastic Block Store (EBS) is a block storage system used to store persistent data. Amazon EBS is suitable for EC2 instances by providing highly available block level storage volumes. It has three types of volume, i.e. General Purpose (SSD), Provisioned IOPS (SSD), and Magnetic. These three volume types differ in performance, characteristics, and cost.

Amazon Elastic Block Store (Amazon EBS) provides block level storage volumes for use with EC2 instances. EBS volumes behave like raw, unformatted block devices. You can mount these volumes as devices on your instances. EBS volumes that are attached to an instance are exposed as storage volumes that persist independently from the life of the instance. You can create a file system on top of these volumes, or use them in any way you would use a block device (such as a hard drive). You can dynamically change the configuration of a volume attached to an instance.

We recommend Amazon EBS for data that must be quickly accessible and requires long-term persistence. EBS volumes are particularly well-suited for use as the primary storage for file systems, databases, or for any applications that require fine granular updates and access to raw, unformatted, block-level storage. Amazon EBS is well suited to both database-style applications that rely on random reads and writes, and to throughput-intensive applications that perform long, continuous reads and writes.

Let me explain what is AWS EBS in laymen terms with the help of an example. Suppose, you have a system with 120GB of storage. You run out of space and you need more space, so you get an external disk and attach it to your system. Life is good, you are happy again. The Amazon EBS is equivalent to that external disk, with the only difference that it is supposed to be used with your EC2 instances (virtual systems) on AWS cloud.

What is EBS?

• EBS stands for Elastic Block Store.
• EC2 is a virtual server in a cloud while EBS is a virtual disk in a cloud.
• Amazon EBS allows you to create storage volumes and attach them to the EC2 instances.
• Once the storage volume is created, you can create a file system on the top of these volumes, and then you can run a database, store the files, applications or you can even use them as a block device in some other way.
• Amazon EBS volumes are placed in a specific availability zone, and they are automatically replicated to protect you from the failure of a single component.
• EBS volume does not exist on one disk, it spreads across the Availability Zone. EBS volume is a disk which is attached to an EC2 instance.
• EBS volume attached to the EC2 instance where windows or Linux is installed known as Root device of volume.

EBS Volume Types

Amazon EBS provides two types of volume that differ in performance characteristics and price. EBS Volume types fall into two parts:

• SSD-backed volumes
• HDD-backed volumes

SSD

• SSD stands for solid-state Drives.
• In June 2014, SSD storage was introduced.
• It is a general purpose storage.
• It supports up to 4000 IOPS which is quite very high.
• SSD storage is very high performing, but it is quite expensive as compared to HDD (Hard Disk Drive) storage.
• SSD volume types are optimized for transactional workloads such as frequent read/write operations with small I/O size, where the performance attribute is IOPS.

SSD is further classified into two parts:

• General Purpose SSD
• Provisioned IOPS SSD

General Purpose SSD

• General Purpose SSD is also sometimes referred to as a GP2.
• It is a General purpose SSD volume that balances both price and performance.
• You can get a ratio of 3 IOPS per GB with up to 10,000 IOPS and the ability to burst up to 3000 IOPS for an extended period of time for volumes at 3334 GiB and above. For example, if you get less than 10,000 IOPS, then GP2 is preferable as it gives you the best performance and price.

Provisioned IOPS SSD

• It is also referred to as IO1.
• It is mainly used for high-performance applications such as intense applications, relational databases.
• It is designed for I/O intensive applications such as large relational or NOSQL databases.
• It is used when you require more than 10,000 IOPS.

HDD

• It stands for Hard Disk Drive.
• HDD based storage was introduced in 2008.
• The size of the HDD based storage could be between 1 GB to 1TB.
• It can support up to 100 IOPS which is very low

Throughput Optimized HDD (st1)

• It is also referred to as ST1.
• Throughput Optimized HDD is a low-cost HDD designed for those applications that require higher throughput up to 500 MB/s.
• It is useful for those applications that require the data to be frequently accessed.
• It is used for Big data, Data warehouses, Log processing, etc.
• It cannot be a boot volume, so it contains some additional volume. For example, if we have Windows server installed in a C: drive, then C drive cannot be a Throughput Optimized Hard disk, D: drive or some other drive could be a Throughput Optimized Hard disk.
• The size of the Throughput Hard disk can be 500 GiB to 16 TiB.
• It supports up to 500 IOPS.

Cold HDD (sc1)

• It is also known as SC1.
• It is the lowest cost storage designed for the applications where the workloads are infrequently accessed.
• It is useful when data is rarely accessed.
• It is mainly used for a File server.
• It cannot be a boot volume.
• The size of the Cold Hard disk can be 500 GiB to 16 TiB.
• It supports up to 250 IOPS.

Magnetic Volume

• It is the lowest cost storage per gigabyte of all EBS volume types.
• It is ideal for the applications where the data is accessed infrequently
• It is useful for applications where the lowest storage cost is important.
• Magnetic volume is the only hard disk which is bootable. Therefore, we can say that it can be used as a boot volume.

Amazon EBS Benefits

• Reliable and secure storage − Each of the EBS volume will automatically respond to its Availability Zone to protect from component failure.
• Secure − Amazon’s flexible access control policies allows to specify who can access which EBS volumes. Access control plus encryption offers a strong defense-in-depth security strategy for data.
• Higher performance − Amazon EBS uses SSD technology to deliver data results with consistent I/O performance of application.
• Easy data backup − Data backup can be saved by taking point-in-time snapshots of Amazon EBS volumes.

Let us see the differences in a tabular form -:

Conclusion 

इस पोस्ट में हमने Amazon EBS अमेज़न वेब सर्विस के बारे में अच्छे से जाना। Amazon EFS is one of Amazon’s primary storage offerings. Once you grasp the fundamental concepts of AWS EFS, you may optimize your application’s speed while also lowering its cost.