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Amazon Elastic File System is a fully managed file storage service that allows you to store and share files across multiple EC2 instances. It's a scalable and durable solution for storing files in the cloud.
Amazon EFS supports both Windows and Linux file systems, making it a versatile choice for a wide range of applications. You can access your files from any EC2 instance, regardless of the instance type or location.
Amazon EFS is a highly available storage solution that automatically replicates your data across multiple Availability Zones. This ensures that your files are always available, even in the event of an Availability Zone failure.
What Is Amazon EFS
Amazon EFS is a fully managed file system in the cloud, designed to provide a scalable and durable way to store and manage files.
It allows you to store and access files from multiple Amazon EC2 instances, and even from on-premises servers, all within a single file system.
Amazon EFS supports both Windows and Linux file systems, making it a great option for businesses with mixed environments.
You can access Amazon EFS using standard NFS (Network File System) or SMB (Server Message Block) protocols, which are widely supported by most operating systems.
Amazon EFS is designed to scale automatically, so you don't need to worry about running out of storage space as your file system grows.
It can store files of any size, from small files to large files, and even supports file system snapshots for data backup and recovery.
Amazon EFS is a highly available file system, designed to provide 99.99% uptime, so you can rely on it for critical file storage needs.
Features and Benefits
Amazon Elastic File System (EFS) offers two storage classes: Standard and One Zone. Both classes are designed to handle frequently and infrequently accessed data, with the option to automatically transfer infrequently accessed files to a lower-cost storage class with EFS Lifecycle Management.
EFS provides scalable performance, with the ability to support a variety of workloads and offer throughput, IOPS, and low latency. This makes file storage and access scalable, while minimizing administration time.
You can control access to your file systems through AWS Identity and Access Management (IAM), a centralized service for managing AWS users, groups, roles, and policies. This allows you to monitor which users are accessing particular resources.
Some of the key features of EFS include:
- Managed file storage infrastructure, eliminating the complexity of deploying, patching, and maintaining complex file system configurations.
- Support for the Network File System version 4 protocol.
- Ability to mount EFS filesystems onto EC2 instances running Linux or MacOS Big Sur, as well as ECS tasks, EKS pods, and Lambda functions.
- Multiple Amazon EC2 instances can access an EFS file system at the same time, providing a common data source for workloads and applications.
Use Cases
Amazon EFS is a powerful tool that can be used in a variety of scenarios.
Content repositories, development environments, web server farms, home directories, and big data applications are just a few examples of use cases for this file system service, according to Amazon.
Amazon EFS is utilized across a broad spectrum including web serving, data analytics, software development and testing, database backup, as well as supporting machine learning and AI applications.
Media and entertainment workflows, such as video editing, studio production, and broadcast processing, often rely on shared storage to manipulate large files.
Amazon EFS provides a strong data consistency model with high throughput and shared file access, which can cut the time it takes to perform these jobs and consolidate multiple local file repositories into a single location for all users.
By using Amazon EFS, businesses can reduce their IT costs and improve their productivity, making it an attractive solution for companies of all sizes.
AWS Features
AWS offers a fully-managed file storage service called Amazon EFS, which makes it easy to set up and scale file storage in the Amazon Cloud.
Amazon EFS includes two storage classes for files: Standard and One Zone, designed to handle the most frequently and least frequently accessed data. With EFS Lifecycle Management, organizations can reduce costs by enabling the automatic transfer of infrequently accessed files to a lower-cost storage class.
Amazon EFS provides scalable performance, with the ability to provide the throughput, IOPS, and low latency to support a variety of workloads. This makes file storage and access scalable, while minimizing time spent on administration.
Amazon EFS supports the Network File System version 4 protocol and can be mounted onto EC2 instances running Linux or MacOS Big Sur. However, Windows is not supported.
Amazon EFS file systems store data and metadata across multiple Availability Zones in an AWS Region, providing high durability and availability. They can grow to petabyte scale, drive high levels of throughput, and allow massively parallel access from EC2 instances to your data.
Here are the key features of Amazon EFS:
- Scalable performance
- Secure and compliant
- Application access control with AWS Identity and Access Management (IAM)
- Support for Network File System version 4 protocol
- Mounting onto EC2 instances, ECS tasks, EKS pods, and Lambda functions
- High durability and availability
- Petabyte-scale storage
- File system access semantics, such as strong data consistency and file locking
- Control access to file systems through POSIX permissions
- Automatic incremental backups with EFS-to-EFS Backup solution
- Infrequent Access storage class for cost-optimized storage
Data Management
Amazon EFS is a reliable choice for data management. It provides a durable, high throughput file system that can handle large amounts of data.
This file system is particularly useful for content management systems and web serving applications. These types of applications store and serve information for websites, online publications, and archives.
Amazon EFS adheres to the expected file system directory structure, file naming conventions, and permissions that web developers are accustomed to. This makes it easy to integrate with web applications.
Data Consistency
Data Consistency is a crucial aspect of data management. Amazon EFS provides open-after-close consistency semantics that applications expect from NFS.
This means that data is consistent after a file is closed, which is a fundamental requirement for many applications. It's like when you save a document on your computer - you expect the data to be there when you open it again.
EFS ensures that data is durably stored across Availability Zones, which is a critical aspect of data consistency. This means that your data will be safe even in the event of a disaster or failure.
Applications that perform synchronous data access and non-appending writes will have read-after-write consistency for data access. This is a guarantee that the data you read is the latest version.
Here's a quick summary of the consistency options provided by EFS:
- Open-after-close consistency: data is consistent after a file is closed
- Read-after-write consistency: applications have access to the latest version of data
Database Backups
Database backups are a crucial part of data management, and Amazon EFS provides a reliable solution for storing them in the cloud.
Amazon EFS presents a standard file system that can be easily mounted with NFSv4 from database servers, providing an ideal platform to create portable database backups using native application tools or enterprise backup applications.
This allows businesses to take advantage of the flexibility of storing database backups in the cloud, either for temporary protection during updates or for development and test.
AWS Backup automates and tracks backup policies for Amazon EFS, making it easier to manage data residing in multiple services without manual intervention.
The following backup options are available for Amazon EFS:
- AWS DataSync: helps establish and maintain an always-on connection between on-premises data storage and Amazon EFS file systems.
- AWS Transfer Family: enables file transfers in and out of Amazon EFS.
- EFS-to-EFS backup: automatically creates incremental backups of an AWS EFS file.
- Amazon S3: stores data as objects within a large number of storage buckets.
- Amazon Glacier: provides secure, durable storage for data archiving and backup.
These backup options provide businesses with a range of choices for managing their database backups, from automated solutions to more manual approaches.
Pricing and Options
Amazon Elastic File System (Amazon EFS) offers a flexible pricing model that allows you to pay only for the storage used by your file system.
You pay only for the storage used by your file system, making it a cost-effective solution for businesses of all sizes.
The cost of Provisioned Throughput is determined by the throughput values you specify, giving you control over your expenses.
Here are the key pricing options for Amazon EFS:
- Standard and infrequent access storage classes based on storage usage
- Optional provisioned throughput model for higher performance needs
This pricing structure allows you to choose the right storage class for your needs, whether it's standard or infrequent access.
Frequently Asked Questions
What is Amazon EBS vs EFS?
Amazon EBS (Elastic Block Store) and EFS (Elastic File System) are two scalable storage options for Amazon EC2 instances, offering low-latency connections and high availability. While EBS scales vertically and horizontally, EFS automatically scales as users upload and delete files.
What file system does Amazon use?
Amazon uses Amazon EFS (Elastic File System) for scalable and high-performance file storage. This cloud-based file system can handle large amounts of data and support multiple compute instances simultaneously.
What is the difference between AWS S3 and EFS?
Amazon S3 is designed for storing large files and backups, while Amazon EFS provides network file storage for EC2 users, offering scalable storage for shared files and applications
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