Introduction to AWS EBS
EBS, called Elastic Block Store is a block storage system used to store data. Designed for mission-critical systems, EBS provides easy scalability to petabytes to data. We all are familiar with the hard disk drive that we usually use for storing large chunks of data over the machines, EBS can be considered the same as a hard drive over the cloud that provides block storage for use. Being the part of AWS, it comes up integrated with other features like EC2, S3 which makes it way easy to use and recommendable. Since Amazon provides local storage for EC2 instance but the data is lost once the instance is closed or shut down so saving of data over cloud EC2 was introduced. So EBS keeps the data even after the EC2 instance is shut down.
Volume Types of AWS EBS
Let us try to understand what exactly a block storage volume is under which EBS is working, block storage volume works similarly as a hard drive, we can store any type of files over there. EBS having the auto replication property helps from data being lost. EBS comes out with major 4 volume types.
1. EBS General Purpose SSD (gp2)
This is the default EBS Volume provided, it has a well-balanced mixture over price with performance. For small I/O operation SSD solid-state drive is much faster than HDD. The volume size for this ranges over 1GB -16TB. The performance is measured over Input Output per Second(IOPS), the EBS volume provides a ratio of 3 IOPS per GB.
2. EBS Provisioned IOPS SSD
This comes as the fastest and most expensive EBS Volume. They are designed for transactional workloads for intensive applications such as NO SQL Databases. The volume size for this ranges over 4GB-16TB and IOPS being to be 100 to 32000 range.
3. Throughput Optimized HDD(st1)
They are low-cost HDD volumes with define performance. The main use of these volumes is over the Hadoop cluster. They are designed for sequential workloads like big data processing, log processing. The volume size differs from the range of 500GB-16TB.
4. Cold HDD
They are the most lower-cost HDD volume designed for sequential workloads as file servers. They are used for colder data requiring fewer scans per day. They can have the same volume as of Throughput HDD from the range of 500Gb – 16 Tb.
Note: We can take a snapshot of the replica image of any EBS volume that we are creating, we can use these snapshots to create new EBS volume over other instances. Also, they can be used as a backup of our volumes as well that are stored over s3.
How to Setup and Use AWS EBS?
Now let’s see the insights of Amazon EBS try to understand to install and use EBS.
Following Steps over AWS Console
Step 1: Open the EC2 console of Amazon.
Step 2: Select the region where we want to create our volume.
Step 3: Choose the Elastic Block Store, Volumes from the navigation pane.
Step 4: Choose to Create Volume.
Step 5: From the Volume, type chooses the type to volume we want to add into.
Step 6: Choose the appropriate size for that volume.
Step 7: Set the maximum IOPS that the volume should support.
Step 8: Check the availability Zone into which we want to create the volume, they can be attached with the instance in the same zone.
Step 9: Choose to Create Volume once the volume is Available we can attach it without instance and can start using it.
Attach the above made EBS with the Instance by the following ways:
- Open the EC2 console.
- Check for Elastic block store, volumes in the navigation pane.
- Select the available volume and choose action, Attach volume.
- Configure the details such as device name, Instance Id and choose Attach.
- Connect to the instance and the volume is attached to it.
Once this process is done we will be able to work with our EBS volumes inside the instances.
Note: If the volume is encrypted it can be only attached to the instances that support EBS Encryption.
Advantages of AWS EBS
Let us now check some of the benefits of using EBS:
- Flexibility for Workloads: EBS are performant to various workloads that are provided as per requirement. They are capable of holding critical applications with a high workload to application with fewer workloads.
- Easy to Use: Since they can be easily created, attached and monitored so particularly EBS is easy to use. EBS allows us to increase storage, tune performance and change the volume as per the demand.
- Data Storage: Storing data after any operation is easily possible with the help of EBS that makes it an efficient choice.
- Cost-Effective: Since it comes with lots of volume type options making it cost-effective for the type of data we have.
- AWS Integrated: It is integrated with all the services of AWS that makes easy availability under a roof so the security, storage, networking everything is integrated into one place.
- Security: The Encryption and Decryption policy for EBS makes it amazingly secure over the network making the data secure.
There are a lot more advantages to having EBS as a better choice.
AWS EBS Pricing
EBS comes with the dynamic and cost-effective pricing that helps users to select the volume of data based on their data load. With EBS we pay only what we use.
- For general purpose SSD (gp2) the pricing comes as $0.1 per GB-month of provisioned storage.
- For EBS Provisioned IOPS SSD (io1) $0.125 per GB-month of provisioned storage. $0.065 per provisioned IOPS-month.
- For EBS Throughput Optimized HDD(st1) $0.045 per GB-month of provisioned storage
- For EBS Cold HDD (sc1) $0.025 per GB-month of provisioned storage
- For detailed pricing refer the amazon EBS pricing docs below:
The Document above has all the details about the various pricing for
AWS Provides many Functionalities that makes thing easier for us, some of the Technologies are AWS EBS.
- Amazon EC2
- Amazon RDS
- Amazon S3
- Amazon CloudFront
- Amazon Auto Scaling
- Amazon Lambda
- Amazon Redshift
- Amazon Elastic MapReduce (EMR)
- Amazon EBS
From the above article, we saw how EBS can be used for storing data with the feature of having an adjustable volume size over the requirement. The data is secure and saved accordingly makes it easy for a developer and also for an application to perform well.
This is a guide to AWS EBS. Here we discuss basic concept, volume types, how to set up and use, advantages with pricing detail. You can also go through our other related articles to learn more –