Merge branch 'docs-nw-update-geo-testing' into 'master'

Geo: Update geo documentation for Object storage replication testing

See merge request gitlab-org/gitlab!84622

doc/administration/geo/replication/geo_validation_tests.md

@@ -208,4 +208,16 @@ The following are additional validation tests we performed.
 - Description: Tested the average time it takes for a single image to replicate from the primary object storage location to the secondary when using Azure based object storage replication and [GitLab based object storage replication](object_storage.md#enabling-gitlab-managed-object-storage-replication). This was tested by uploading a 1mb image to a project on the primary site every second for 60 seconds. The time was then measured until a image was available on the secondary site. This was achieved using a [Ruby Script](https://gitlab.com/gitlab-org/quality/geo-replication-tester).
 - Outcome: When using Azure based replication the average time for an image to replicate from the primary object storage to the secondary was recorded as 40 seconds, the longest replication time was 70 seconds and the quickest was 11 seconds. When using GitLab based replication the average time for replication to complete was 5 seconds, the longest replication time was 10 seconds and the quickest was 3 seconds.
 - Follow up issue:
-  - [Test and validate object storage replication performance on reference architectures](https://gitlab.com/gitlab-org/gitlab/-/issues/347314)
+  - [Validate Cross Region Object storage replication using Azure based object storage](https://gitlab.com/gitlab-org/gitlab/-/issues/358154)
+
+### April 2022
+
+[Validate Object storage replication using AWS based object storage](https://gitlab.com/gitlab-org/gitlab/-/issues/351463):
+
+- Description: Tested the average time it takes for a single image to replicate from the primary object storage location to the secondary when using AWS based object storage replication and [GitLab based object storage replication](object_storage.md#enabling-gitlab-managed-object-storage-replication). This was tested by uploading a 1mb image to a project on the primary site every second for 60 seconds. The time was then measured until a image was available on the secondary site. This was achieved using a [Ruby Script](https://gitlab.com/gitlab-org/quality/geo-replication-tester).
+- Outcome: When using AWS managed replication the average time for an image to replicate between sites is about 49 seconds, this is true for when sites are located within the same region and when they are further apart (Europe to America). When using Geo managed replication within the same region the average time for replication took just 5 seconds, however when replicating cross region the average time rose to 33 seconds.
+
+[Validate Object storage replication using GCP based object storage](https://gitlab.com/gitlab-org/gitlab/-/issues/351464):
+
+- Description: Tested the average time it takes for a single image to replicate from the primary object storage location to the secondary when using GCP based object storage replication and [GitLab based object storage replication](object_storage.md#enabling-gitlab-managed-object-storage-replication). This was tested by uploading a 1mb image to a project on the primary site every second for 60 seconds. The time was then measured until a image was available on the secondary site. This was achieved using a [Ruby Script](https://gitlab.com/gitlab-org/quality/geo-replication-tester).
+- Outcome: GCP handles replication differently than other Cloud Providers. In GCP, the process is to a create single bucket that is either multi, dual or single region based. This means that the bucket will automatically store replicas in a region based on the option chosen. Even when using multi region, this will still only replicate within a single continent, the options being America, Europe, or Asia. At current there doesn't seem to be any way to replicate objects between continents using GCP based replication. For Geo managed replication the average time when replicating within the same region was 6 seconds, and when replicating cross region this rose to just 9 seconds.