Update guide.en-gb.md

Author: H4516022Y

pages/account_and_service_management/reversibility/22-SDB-opensearch-reversibility/guide.en-gb.md

@@ -31,8 +31,10 @@ Features of the product line fall into three categories:
 
 | **Function** | **Description** | **Available formats** | **Migration model** | **Available documentation** |
 | --- | --- | --- | --- | --- |
-| --- | --- | --- | **Inbound** :  <br> **Oubound** :   | []() |
-| --- | --- | --- | **Inbound** :  <br> **Oubound** :   | []() |
+| Automatic backups managed by OVHcloud | Daily backups managed by OVHcloud (retention varies depending on the chosen offer) | OVHcloud internal snapshots | **Inbound**: Not applicable. Feature available by default and no action is required by the user of the platform <br>**Outbound**: Create a new service, restore an OVHcloud snapshot locally, then export it manually to the new environment   | [Public Cloud Databases - Automatic backups ](/pages/public_cloud/public_cloud_databases/databases_05_automated_backups) |
+| vRack | The vRack, or virtual rack, is a private VLAN technology that enables the connection between OVHcloud services | NA | **Inbound**: <br>**Outbound**: | [Creating Public Cloud Databases V(x)LANs](/pages/public_cloud/public_cloud_databases/databases_08_vrack) |
+Access Control List (ACL) | Manage access rights via the OVHcloud interface | NA | **Inbound**: create rules manually in the OVHcloud interface. <br>**Outbound**: Convert ACL rules to new provider format. | [OpenSearch - Capabilities and Limitations](/pages/public_cloud/public_cloud_databases/opensearch_01_capabilities) |
+| Metrics | Metrics collection integrated into the OVHcloud infrastructure | Prometheus metrics | **Inbound**: send logs via a dedicated entry point <br>**Outbound** : possible export and reconfiguration needed on the new platform | [OpenSearch - Monitor your infrastructure ](/pages/public_cloud/public_cloud_databases/opensearch_200_elk_like) |
 
 
 ## 3-Specific features