Hello, friends! Today Iβll dive into another exciting AWS topic. In this post, we'll explore Elastic Block Store (EBS)βwhat it is, how it works, and some key features.
Here is the video explanation of it. π
What is EBS? π€
EBS stands for Elastic Block Store. AWS provides a storage service that offers persistent block storage volumes for use with Amazon EC2 instances. Think of it as a hard drive in the cloud that you can attach to your instances to store data.
How Does EBS Work?
EBS provides block-level storage volumes that can be attached to EC2 instances. These volumes behave like physical hard drives but are hosted in the AWS cloud. Here's a simple breakdown:
PC Instances: Imagine three computers (instances) that need storage.
EBS Blocks: Each instance is provided with EBS volumes (blocks) where their data will be stored.
Network Connection: The connection between the instances and the EBS volumes is managed through a network.
Key Features of EBS π
1. Storage Allocation π¦
EBS volumes can provide storage space to instances as needed. For example, an instance may require 500GB, 1TB, or even more, and EBS will allocate the necessary space.
2. Network Latency π
While EBS is efficient, there is some network latency involved. This delay occurs in milliseconds because the data transfer happens over a network. However, this latency is minimal and usually not noticeable.
3. Multiple Volumes & Instances πΎ
One Instance, Multiple EBS Volumes: An instance can have multiple EBS volumes attached to it.
One EBS Volume, Multiple Instances: It's possible, though less common, for a single EBS volume to be shared among multiple instances.
4. Availability Zones π
EBS volumes are tied to specific availability zones. This means an instance and its EBS volume must be in the same zone to function together. However, you can change the availability zone using snapshots.
5. Dynamic Resizing π
You can increase the size of an EBS volume even while itβs running. If your application needs more storage, you can request additional space without stopping the instance.
Practical Usage of EBS π οΈ
In my next post, I'll show you the practical steps to set up and use EBS with your EC2 instances. For now, letβs summarize what weβve learned:
EBS is like a hard drive in the cloud, providing storage for EC2 instances.
Network Latency is minimal but present due to data transfer over the network.
Storage Allocation is flexible, allowing instances to request and use the necessary space.
Availability Zones must match between EBS volumes and instances for them to work together.
Dynamic Resizing lets you increase storage size on the fly without downtime.
Conclusion π―
EBS is a powerful and flexible storage solution in the AWS ecosystem. It supports a variety of use cases and can scale as your storage needs grow. In the next video, we'll dive into the practical side of EBS, showing you how to set it up and manage it effectively.
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Stay tuned for more AWS insights, and happy cloud computing! βοΈπ§