S3: "Unlocking the Power of Cloud Storage: A Comprehensive Guide to AWS S3"

What is Amazon S3:

S3 - Simple Storage Service

• Amazon S3 is a Simple Storage Service in aws stores files of different types like Photos, Audio, and Videos as Objects providing more scalability and security to.

• It allows the users to store and retrieve any amount of data at any point in time from anywhere on the web.

• S3 is widely used for backup and restore, data archiving, big data analytics, and static website hosting.

Key Features of S3:

• Scalability- Automatically scales to handle the volume of data you need to store, from gigabytes to petabytes.

• Durability & Availability- Provides 99.999999999% (11 9's) durability and 99.99% availability of objects over a given year.

• Security- Supports data encryption at rest and in transit. Offers access management tools such as AWS IAM policies, bucket policies, and access control lists (ACLs).

• Data Management Features- Versioning to preserve, retrieve, and restore every version of every object stored.

• Strong Classes: Multiple storage classes to optimize cost and performance, such as S3 Standard, S3 Intelligent-Tiering, S3 Standard-IA (Infrequent Access), and S3 Glacier for archival storage.

S3 Common Use Cases:

• Backup & Restores - Organizations use S3 to backup their data due to its durability and availability guarantees.

• Data Archiving- Long-term storage with S3 Glacier and S3 Glacier Deep Archive at a low cost.

• Big Data Analytics- Storing data for processing by AWS analytics services such as Amazon Redshift, Amazon EMR, and Amazon Athena.

• Static Website Hosting- Hosting static websites with support for web page rendering and custom domain names.

• Content Storage & Distribution- Storing and distributing large amounts of content, such as media files, software, and documents etc.

Create AWS S3 Bucket:

1. Sign in to the AWS Management Console

2. Navigate to S3:

   • In the console find and select S3

3. Create a New Bucket:

   • Click on the create bucket button

4. Configure the Bucket:

   • Bucket Name: Enter a unique name for your bucket. The name must be globally unique across all existing bucket names in S3.

   • Region: Select the AWS region where you want to create the bucket. It’s generally best to choose a region close to your users or where you plan to use the bucket most.

5. Set Bucket Options (optional):

   • Object Ownership: Choose whether the bucket owner has full control over new objects or the object creator has control.

   • Block Public Access: Enable or disable public access settings. It's recommended to block all public access unless you specifically need the bucket to be publicly accessible.

   • Versioning: Optionally enable versioning to keep multiple versions of an object in the same bucket.

   • Tags: Add tags to help organize and manage your AWS resources.

   • Default Encryption: Set a default encryption to automatically encrypt all objects stored in the bucket.

6. Review and Create:

   • Review your settings and click "Create bucket" to create the bucket.

Upload files in S3:

Login to aws console > S3 > select bucket > upload files > select add files or add folders > browse and select file > upload.

S3 Versioning:

• Amazon S3 versioning is a feature that allows you to keep multiple versions of an object in a bucket.

• This helps protect against accidental deletions and overwrites, provides a way to preserve, retrieve, and restore every version of every object stored in an Amazon S3 bucket, and enhances data protection and data management capabilities.

Key Features of S3 Versioning:

1. Multiple Versions of an Object:

   • When versioning is enabled, Amazon S3 assigns a unique version ID to each object stored in a bucket.

   • Every time you modify or delete an object, Amazon S3 keeps the previous versions, which you can retrieve later if needed.

2. Protection Against Accidental Deletion and Overwrites:

   • By retaining old versions of objects, versioning can help recover data that might have been deleted or overwritten accidentally.

3. Integration with Lifecycle Rules:

   • You can set lifecycle rules to manage the versions of objects. For example, you can specify policies to delete old versions automatically after a certain period.

4. Compatibility with MFA Delete:

   • For additional security, you can enable MFA (Multi-Factor Authentication) Delete, which requires additional authentication to delete versions of objects.

Enable Versioning:

AWS Management console > S3 > Select Bucket > Enable Versioning:

• Go to the "Properties" tab.

• Find the "Bucket Versioning" section and click "Edit".

• Select "Enable versioning" and click "Save changes".

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