S3 is a key-value store, with each key representing an object. Each key is made up of two parts:
- A key namespace, which is unique to the account that owns the bucket
- An object name which is unique within the bucket
What is S3?
S3 is a popular choice for storing data in the cloud because it is highly scalable, reliable, and fast. It is also one of the most affordable storage options available. In addition, S3 is easy to use and provides several features that make it a great choice for storing data in the cloud.
S3 is a web-based storage service that Amazon provides. It allows you to store data in the cloud and access it from anywhere in the world. S3 is scalable, meaning you can store as much or as little data as you want without worrying about running out of space. It is also reliable, meaning that your data will be safe and accessible when you need it. And, finally, S3 is fast, meaning that you can access your data quickly and easily from anywhere in the world.
S3 provides a number of features that make it a great choice for storing data in the cloud. These features include:
-Data redundancy: S3 stores your data across multiple servers, so if one server goes down, your data will still be accessible from another server.
-Data security: S3 uses encryption to protect your data while it is in transit and at rest.
-Web-based interface: S3 provides a web-based interface that makes it easy to manage your data in the cloud. You can use this interface to create and manage buckets (folders) and files (objects), as well as to set permissions and configure other settings.
-Integration with other Amazon services: S3 integrates with other Amazon services, such as Amazon CloudFront, Amazon Glacier, and Amazon Elastic Beanstalk, making it easy to use these services together to build applications in the cloud.
S3 Storage Classes
S3 Standard for General Purpose Storage S3 Standard-Infrequent Access for General Purpose Storage S3 One Zone-Infrequent Access for General Purpose Storage S3 Intelligent-Tiering for General Purpose Storage S3 Standard for Object Backup S3 Reduced Redundancy Storage S3 Glacier AWS Snowball
S3 Lifecycle Management
S3 Lifecycle Management is a simple, cost-effective tool that helps you manage the storage and lifecycle of your data. With S3 Lifecycle Management, you can define rules to Automatically move your data to the appropriate storage as it changes, and archive or delete it when it’s no longer needed. S3 Lifecycle Management is especially useful for data that is accessed infrequently or accessed only for a limited time, such as log files and data backups. You can use S3 Lifecycle Management to automatically migrate your data to the Amazon Glacier storage class when it’s no longer needed, and then delete it after a specified period of time.
S3 Versioning is a way of keeping multiple versions of your files in one bucket. When you enable versioning, any new file uploads will create a new version of that file and any existing files will maintain their original version. This is useful if you accidentally delete a file or want to revert back to an older version. To enable S3 Versioning, you need to create a new bucket or enable it on an existing bucket in the S3 console. Once Versioning is enabled, you cannot disable it, but you can suspend it.
Cross-region replication is a feature of Amazon S3 that automatically copies objects across buckets in different AWS Regions. Cross-region replication establishes a relationship between a source bucket and a destination bucket. After you enable cross-region replication on a bucket, Amazon S3 automatically replicates every object added to the bucket to the destination bucket. Objects deleted from the source bucket are also deleted from the destination bucket. This documentation uses the following terms:
Source bucket – The bucket that contains the objects to be replicated. The objects in this bucket are called source objects.
Destination bucket – The bucket where Amazon S3 replicates the source objects. The replicated objects in this bucket are called destination objects. A destination object has the same key (and data) as its corresponding source object, but might have different metadata. For example, the destination object might have a new ETag or storage class because it was created by Amazon S3 during cross-region replication.
Cross-region replica – An object in a destination bucket that was created by cross-region replication from a source object in a source bucket. To identify whether an object is a replica, check for the x-amz-replication–metadata and x-amz-replication–status response headers when you GET an object from its origin or read an object’s metadata using any other method such as HEADObject or LISTObjectsV2 . These headers are not returned when you GET an object through Infrequently Accessed Storage (IAS). For more information “””
S3 Transfer Acceleration
S3 Transfer Acceleration enables fast, easy, and secure transfers of files to and from Amazon S3. Using Amazon S3’s massively parallel data architecture, S3 Transfer Acceleration reads and writes objects across multiple servers simultaneously, dramatically increasing data transfer speeds. S3 Transfer Acceleration is ideal for time-sensitive uploads, such as attaching large amounts of data to Amazon EC2 instances or moving data between different Amazon S3 buckets.
To enable S3 Transfer Acceleration for a bucket, set theTransferAcceleration property of the bucket to true. When this property is set to true and you make an accelerated request to the bucket that is not enabled forTransfer Acceleration, the x-amz-accelerate header is not included in the response.
S3 Object Lock
S3 Object Lock is a characteristics of an S3 bucket that can be used to store information in an immutable (write-once, read-many) fashion with perfect forward secrecy. It allows users to configure a bucket so that all new objects added are stored in compliance with regulations that require a certain level of immutability. This is accomplished by setting a retention period for objects and enabling WORM (write once, read many) mode which blocks deletion and overwrites for the specified retention period.
S3 Intelligent-Tiering is a cost-effective storage class that automatically moves data to the most cost-effective storage tier, without performance impact or operational overhead. With S3 Intelligent-Tiering, you pay only for the storage you use and the requests you serve. There is no minimum fee, and no upfront costs.
S3 Glacier is a secure, durable, and extremely low-cost storage service for data archiving. You can reliably store any amount of data at costs that are competitive with or cheaper than on-premises solutions. S3 Glacier delivers millisecond access times for data retrieval, making it suitable for a range of applications that require fast access to archived data.
S3 Glacier Deep Archive
S3 Glacier Deep Archive is Amazon S3’s lowest-cost storage class for data archiving and long-term backup. With a retrieval time of 12 hours, it provides secure, durable, and extremely low-cost storage for data accessed rarely, yet requires rapid access when needed. S3 Glacier Deep Archive complements S3 Glacier by offering the lowest cost at $0.00099 per GB per month for long-term storage. S3 Glacier Deep Archive is optimized for data that is infrequently accessed and stored for at least 180 days with flexible retrieval options. It retains all of the same security and compliance capabilities as other S3 storage classes with complimentary features like cross-region replication, event notifications, and Amazon CloudWatch integration.
S3 Infrequent Access
S3 Infrequent Access is a new storage class that is designed for infrequently accessed data. It offers a lower price than S3 Standard, but with slightly higher latency and lower availability. S3 IA is a good choice for data that is accessed less frequently, but still requires quick access when needed.
S3 One Zone-Infrequent Access
This storage class is for data that you don’t need to access very often, but when you do need it, you need it quickly. S3 One Zone-Infrequent Access is a cheaper option for storing data that other people in your organization will rarely, if ever, access.
To give you an idea of how much cheaper S3 One Zone-Infrequent Access is, let’s say you have a file that’s 1 GB in size. If you store that file in S3 Standard, it would cost you $0.023 per month. If you store it in S3 One Zone-Infrequent Access, it would cost you $0.0125 per month – that’s a savings of 45%.
However, there are some tradeoffs with this storage class. First of all, as the name implies, your data will only be stored in one Availability Zone, so it’s not as redundant as other storage classes. Secondly, while S3 Standard has a minimum object size of 0 bytes and a maximum object size of 5 GB, S3 One Zone-Infrequent Access has a minimum object size of 128 KB and a maximum object size of 5 GB.
So if you have data that doesn’t need to be accessed very often and can live without the redundancy of multiple Availability Zones, S3 One Zone-Infrequent Access might be the storage class for you.
S3 Standard – Infrequent Access
S3 Standard – Infrequent Access (sometimes abbreviated as S3 Standard – IA) is similar to S3 Standard, but you are charged a lower fee for infrequently accessed data. Data accessed less than once per month is charged at a rate that is lower than S3 Standard.
S3 IA can be a cost-effective storage option for data that you want to store redundantly and durability, but do not need to access on a regular basis. You can transition data to S3 IA by using Lifecycle Policies.
S3 Standard – IA (Glacier)
S3 Standard IA (Glacier) is an archive storage class for long-term storage. It is designed for data that is infrequently accessed and it can be stored for as little as $0.01 per GB per month. S3 Standard IA (Glacier) has a retrieval fee which ranges from $0.01 to $0.03 per GB.
When you store data in S3 Standard – IA (Glacier), it is stored in three different locations. This provides high availability and durability of your data. The data is replicated to multiple devices in each Availability Zone. In addition, S3 Standard – IA (Glacier) stores your data on facilities that use Amazon Simple Storage Service (S3) Versioning to provide added protection against accidental deletion or overwrites.
S3 Reduced Redundancy Storage
S3 Reduced Redundancy Storage (RRS) is an Amazon S3 storage option that automatically replicates data across multiple servers in an Amazon data center. RRS provides a lower level of durability than Amazon S3 Standard, but at a lower price point.
When you store data using RRS, you can specify a level of protection, which is the number of duplicates of your data that are stored across multiple servers. For example, you can specify that your data should be stored three times (3-copy protection), which means that three copies of your data are stored in different servers.
If one server fails, your data is still accessible from the other two servers. However, if two servers fail, your data will be lost.
S3 Object Tagging
S3 Object Tagging is a way of organizing your S3 data by attaching labels (tags) to your S3 objects (files). With tags, you can categorize your data, set access controls, and control costs. You can create and manage tags using the AWS Management Console, the AWS SDKs, or the Amazon S3 REST API.
When you add a tag to an S3 object, you specify a key and a value. The key is like a category name, and the value is like a subcategory. For example, you could tag all the files in a “photos” folder with the key “date” and the value “2018-01-01”. This would help you organize your photos by date.
Tags are stored as name-value pairs. Each S3 object can have up to 10 tags. The total size of all tags for an object cannot exceed 20 KB.