Add wording and include an example

Author: stefaniuk

blueprints/backup-aws-example.png

@@ -5,6 +5,33 @@
 - These notes are part of a broader set of [blueprints](../blueprints.md)
 - This blueprint relates to [service reliability](../practices/service-reliability.md) and specifically to use of [cloud services](../practices/cloud-services.md)
 
-## TBC
+## Requirements
 
-... TBC ...
+The Backup Policy is supported by two additional papers – the Backup Standard and the Backup Design Pattern. These documents include the following backup requirements on the NHS England services:
+
+- *"critical data is saved in multiple backup locations"*
+- *"at least 3 copies"*
+- *"on 2 separate devices"*
+- *"1 copy being stored off-site and offline or be immutable by online means"*
+- *"ensure information & systems can be restored after an incident including but not limited to ransomware and insider attack"*
+- *"in line with (RPO & RTO) Recovery Point Objectives and Recovery Time Objectives"*
+
+## Purpose
+
+- To protect NHS patients' data
+- To ensure NHS services remain available to the patients
+- To comply with legal and regulatory requirements
+
+Links to the documents:
+
+- [Backup Policy](https://hscic365.sharepoint.com/:w:/r/sites/InfoSecMgtSys/_layouts/15/doc2.aspx?sourcedoc=%7B37D35F44-4EEA-47F2-85B5-7ECA8B00AAAE%7D&file=Policy-Backup-v1.1-20220516.docx&action=default&mobileredirect=true&wdLOR=cE8980BB9-6B50-2E4E-840E-746BD263430E)
+- [Backup Standard](https://hscic365.sharepoint.com/:w:/r/sites/InfoSecMgtSys/_layouts/15/Doc.aspx?sourcedoc=%7B8E6C4069-3166-443A-8347-1F8E2FF5235D%7D&file=Standard-Backup-v1.0-20220216.docx&action=default&mobileredirect=true&wdLOR=cCA227EE8-BA47-F541-BF9E-0B94C577E1B7)
+- [Backup Design Pattern](https://hscic365.sharepoint.com/:w:/r/sites/InfoSecMgtSys/_layouts/15/Doc.aspx?sourcedoc=%7B8F146F36-595B-4DDD-8C3F-123243664102%7D&file=Design%20Pattern%20-Backups-v1.0-20220812.docx&action=default&mobileredirect=true&wdLOR=c6A16A268-9E7A-4F4F-BFB9-6EAD58CC6F9E)
+
+## Supported services
+
+![alt text](backup-aws-supported-services.png)
+
+## Example: DynamoDB & S3
+
+![alt text](backup-aws-example.png)

blueprints/backup-aws-supported-services.png

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