Update Storage classes - EN - guide.en-gb.md

What changed:
- new intro sentence
- new infrequent access class
- new comparison table
- new details btw SWIFT & S3 comaptible object storage solutions

Author: agoude

pages/storage_and_backup/object_storage/s3_choosing_the_right_storage_class_for_your_needs/guide.en-gb.md

@@ -1,33 +1,49 @@
 ---
 title: Object Storage - Choosing the right storage class for your needs
-updated: 2024-11-25
+updated: 2025-05-27
 ---
 
 Object Storage is a family of storage solutions that offer high-performance, scalable and secure storage spaces.
 
 With object storage solutions, you can store static files (videos, images, web files...) in an unlimited space via a public access point, called an endpoint. You can use these files from an application, or you can make them accessible on the web. These storage spaces are accessible via an API interface.
 
-## The object storage offers are:
+We offer two Object Storage solutions: our **latest generation S3-compatible Object Storage**, which is generally available, and our **established SWIFT Object Storage**, which remains a supported option for users. However, we recommend, using the S3-compatible Object Storage solution for newly designed applications as it benefits from latest features.
 
-### Object Storage - Standard class (S3 **\*** compatible)
+## S3* compatible Object Storage tiers
+
+Our **S3 compatible Object Storage classes** are tailored to meet specific requirements for your workloads including overall performance, availability and resiliency levels, access time and costs. 
+
+### Object Storage - Standard class (S3 compatible)
 
 The Standard storage class offers a scalable object storage service, compatible with the vast majority of use cases, adapted to any type of volume. The solution is based on HDD storage within a resilient architecture in a datacentre. The solution is accessible via S3 compatible API.
 
 This offer is suitable for the following use cases: media/content storage & delivery, datalake, website, backup, logs and application metrics.
 
-> [!primary]
-> The Standard storage class is available on both **1-AZ and 3-AZ** regions. More details about available regions [here](/pages/storage_and_backup/object_storage/s3_location).
-
 ### Object Storage - High Performance class (S3 compatible)
 
-The High Performance storage class is a high-performance object storage space for applications that have high bandwidth requirements and require extremely fast and intensive read and write access to data. The solution relies on storage on high-performance NVMe SSD disks, within a resilient architecture in a datacentre. The solution is accessible via an S3 API.
+The High Performance storage class is a high-performance object storage space for applications that have high bandwidth requirements and require extremely fast and intensive read and write access to data. The solution relies on storage on high-performance NVMe SSD disks, within a resilient architecture in a datacentre.
 
 This offer is suitable for the following use cases: AI & Analytics, Datalake, High power Computing Multimedia / Content Platform.
 
-> [!primary]
-> The High Performance storage class is available on **1-AZ regions** only. More details about available regions [here](/pages/storage_and_backup/object_storage/s3_location).
+### Object Storage - Infrequent Access class (S3 compatible)
+
+The Infrequent Access storage class is designed for infrequently accessed data, also known as "cool" data storage, requiring fast data retrieval. It offers similar performance (ms TTFB, low latency) and availability than Standard Object Storage but with a lower cost per GiB-hour and a per GiB retrieval fee.
+
+This offer is suitable for the following use cases: long-term storage, backups, disaster recovery.
+
+### Comparison Table
+
+| Storage Class | Use Cases | Performance (TTFB) | Supported Regions | Availability SLA | Minimum storage duration | Retrieval fee | Granularity |
+| --- | --- | --- | --- | --- | --- | --- | --- |
+| **High Performance** | AI & Analytics, Datalake, High power Computing Multimedia / Content Platform | milliseconds | 1-AZ | 1-AZ regions: 99,9% | No | No | Object-level, lifecycle management support |
+| **Standard** | Media/content storage, datalake, website, backup, logs, application metrics | milliseconds | 1-AZ and 3-AZ | 1-AZ regions: 99,9% - 3-AZ regions: 99,99% | No | No | Object-level, lifecycle management support |
+| **Infrequent Access** | Long-term storage, backups, disaster recovery. | milliseconds | 1-AZ and 3-AZ | 1-AZ regions: 99,9% - 3-AZ regions: 99,99% | 30 days | Yes | Object-level, lifecycle management support |
+| **Cold Archive** | Very long-term storage, backups, disaster recovery. | hours | 4 dedicated DCs | 99,9% | 90 days | Yes | Bucket-level, no lifeycle management support yet|
+
+More details about available regions [here](/pages/storage_and_backup/object_storage/s3_location).
+
 
-## The SWIFT object storage offers are:
+## OpenStack SWIFT Object Storage tiers
 
 ### Standard object storage - SWIFT API
 
@@ -39,12 +55,13 @@ The Cloud Archive (SWIFT) storage class offers a storage service for long-term d
 
 ## All storage classes are accessible through the standard API
 
-| Storage Class | Offer lifecycle management | Standard access via Amazon S3 API | OpenStack access via SWIFT API |
+| Storage Class | Compatibility | Availability | Status |
 | ------ | ------ | ------ | ------ |
-| Object Storage - Standard class (S3 compatible) | Last generation of solutions | yes | no |
-| Object Storage - High Performance class (S3 compatible) | Last generation of solutions | yes | no |
-| Swift Standard Object Storage  | Close listing end | partial | yes |
-| Cloud Archive - SWIFT API | Close listing end | no | yes |
+| Object Storage - High Performance class | S3-compatible | General Availability | Latest Generation |
+| Object Storage - Standard class | S3-compatible | General Availability | Latest Generation |
+| Object Storage - Infrequent Access class | S3-compatible | General Availability | Latest Generation |
+| Swift Standard Object Storage | OpenStack SWIFT | Supported | Established Solution |
+| Cloud Archive - SWIFT API | OpenStack SWIFT | Supported | Established Solution |
 
 The list of all API endpoints can be found [here](/pages/storage_and_backup/object_storage/s3_location).