Merge branch 'docs-note-helm-omnibus-values' into 'master'

Clarify backup node config should be based off of helm values

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/142753



Merged-by: Achilleas Pipinellis <axil@gitlab.com>
Approved-by: Achilleas Pipinellis <axil@gitlab.com>
Reviewed-by: Achilleas Pipinellis <axil@gitlab.com>
Co-authored-by: Ulises Fierro <ufierro@gitlab.com>

doc/administration/backup_restore/backup_large_reference_architectures.md

@@ -118,8 +118,8 @@ There is a feature proposal to add the ability to back up repositories directly
 
   1. Spin up a VM with 8 vCPU and 7.2 GB memory. This node will be used to back up Git repositories. Note that
      [a Praefect node cannot be used to back up Git data](https://gitlab.com/gitlab-org/gitlab/-/issues/396343#note_1385950340).
-  1. Configure the node as another **GitLab Rails** node as defined in your [reference architecture](../reference_architectures/index.md).
-     As with other GitLab Rails nodes, this node must have access to your main PostgreSQL database, Redis, object storage, and Gitaly Cluster.
+  1. Configure the node as another **GitLab Rails (webservice)** node as defined in your [reference architecture](../reference_architectures/index.md).
+     As with other GitLab Rails nodes, this node must have access to your main PostgreSQL database, Redis, object storage, and Gitaly Cluster. Find your reference architecture and see the "Configure GitLab Rails" section of an example how to set the server up. You might need to translate some [Helm chart values](https://docs.gitlab.com/charts/charts/globals.html) to the Linux package equivalent ones.
   1. Ensure the GitLab application isn't running on this node by disabling most services:
 
      1. Edit `/etc/gitlab/gitlab.rb` to ensure the following services are disabled.