Transfer between two GCP collections using Globus

docs/data_management/transfer/globus/gcp_install.md

@@ -54,7 +54,7 @@ The following steps will guide you to install Globus Connect Personal (GCP) on y
     - **Owner Identity:** is the person responsible for this Collection. This field should already be filled with UAB Campus or XIAS email address. If not, please select that email address here.
     - **Collection Name:** is the name for the Collection. This should be filled with the name of the Collection from the previous step.
     - **Description:** Feel free to enter descriptive information about the Collection here. This information will be displayed in the Globus Web App when the Collection is viewed by others.
-    - **High Assurance:** Only check this box if the Collection has or will have PHI, HIPAA, or other protected data. If this is the case, please ensure that you have already completed a risk assessment with UAB Enterprise IT.
+    - **High Assurance:** Only check this box if the Collection has or will have PHI, HIPAA, or other protected data, or if you need to transfer data [between GCP collections](./globus_individual_tutorial.md#how-do-i-transfer-between-gcp-collections). If this is the case, please ensure that you have already completed a risk assessment with UAB Enterprise IT.
 
     ![GCP Setup Collection details](../images/go-gcp-install/common/collection-details.png)
 
@@ -105,9 +105,15 @@ The following steps will guide you to install Globus Connect Personal (GCP) on y
     - **Owner Identity:** is the person responsible for this Collection. This field should already be filled with UAB Campus or XIAS email address. If not, please select that email address here.
     - **Collection Name:** is the name for the Collection. This should be filled with the name of the Collection from the previous step.
     - **Description:** Feel free to enter descriptive information about the Collection here. This information will be displayed in the Globus Web App when the Collection is viewed by others.
-    - **High Assurance:** Only check this box if the Collection has or will have PHI, HIPAA, or other protected data. If this is the case, please ensure that you have already completed a risk assessment with UAB Enterprise IT.
+    - **High Assurance:** Only check this box if the Collection has or will have PHI, HIPAA, or other protected data, or if you need to [transfer data between two GCP collections](./globus_individual_tutorial.md#how-do-i-transfer-between-gcp-collections). If this is the case, please ensure that you have already completed a risk assessment with UAB Enterprise IT.
 
-    ![GCP Setup Collection details](../images/go-gcp-install/common/collection-details.png)
+    Screenshot of GCP default setup (High Assurance not selected):
+    ![ Screenshot of default GCP Collection configuration](../images/go-gcp-install/common/collection-details.png)
+
+    Screenshot of GCP High Assurance (HA) enabled:
+    ![Screenshot of High Assurance  GCP Collection configuration](../images/go-gcp-install/common/gcp-ha.png)
+
+    - When High Assurance is enabled (checked), you must also configure the authentication timeout. This defines how long (in minutes) a user's authentication remains valid. Shorter durations improve security. In this example, 10 minutes is set (you may choose a value that fits your needs).
 
 1. GCP Setup is now complete on your computer. Your computer is now serving your new Globus Collection and may be used to transfer data. Click "Exit Setup" to close the window.
 

docs/data_management/transfer/globus/globus_individual_tutorial.md

@@ -17,6 +17,7 @@ Topics covered:
 1. [How Do I Find Collections Shared with Me?](#how-do-i-find-collections-shared-with-me)
 1. [How Do I Transfer Data Between Collections?](#how-do-i-transfer-data-between-collections)
     1. [How Do I Transfer between a Collection and Cheaha?](#how-do-i-transfer-between-a-collection-and-cheaha)
+    1. [How Do I Transfer between GCP Collection (local endpoints)?](#how-do-i-transfer-between-gcp-collections)
     1. [How Do I Transfer between a Collection and LTS?](#how-do-i-transfer-between-a-collection-and-lts)
     1. [How Do I Transfer between LTS and Cheaha?](#how-do-i-transfer-between-lts-and-cheaha)
 1. [How Do I Check Transfer Status?](#how-do-i-check-transfer-status)
@@ -127,6 +128,7 @@ If you can't find a particular Collection this way, but know its name, try [sear
 This section outlines common data transfer scenarios between Globus Collections and Research Computing storage systems.
 
 - [Between a Collection and Cheaha](#how-do-i-transfer-between-a-collection-and-cheaha)
+- [Between GCP collections](#how-do-i-transfer-between-gcp-collections)
 - [Between a Collection and LTS](#how-do-i-transfer-between-a-collection-and-lts)
 - [Between LTS and Cheaha](#how-do-i-transfer-between-lts-and-cheaha)
 
@@ -170,9 +172,23 @@ From here you can proceed to other related tutorials to initiate other transfers
 [return to the index](#globus-for-individual-researchers).
 
 - [How Do I check transfer status?](#how-do-i-check-transfer-status)
+- [Between GCP collections](#how-do-i-transfer-between-gcp-collections)
 - [How Do I Transfer Between a Collection and LTS?](#how-do-i-transfer-between-a-collection-and-lts)
 - [How Do I Transfer Between LTS and Cheaha?](#how-do-i-transfer-between-lts-and-cheaha)
 
+### How Do I Transfer Between GCP Collections?
+
+GCP collections are local or personal collections created on your own computer (e.g laptops, desktops, workstations, or other self-managed systems), including cloud environments such as [Cloud.rc](../../../code.rc/index.md), using Globus Connect Personal (GCP).
+
+To transfer data between GCP collections, you must be a member of a Globus Subscription group. UAB Research Computing provides the "University of Alabama at Birmingham (HA)" subscription group. Joining this group enables transfers between GCP collections.
+
+Requirements and expectations for joining:
+
+- You must register using your `BlazerID@uab.edu` email address.
+- You must provide a reason when submitting your membership request.
+- Any GCP endpoints or collections you create must be marked as "High Assurance (HA)" at creation time, this setting cannot be changed later. If you have a standard GCP installation, you will need to reinstall the GCP software to enable HA. You can refer the [GCP installation instructions to enable HA](./gcp_install.md#installing-gcp-on-macos) page.
+- Only UAB employees (including graduate students) are eligible to join, in accordance with our Globus subscription terms. Users from other institutions (e.g XIAS users or external identities) are not eligible.
+
 ### How Do I Transfer Between a Collection and LTS?
 
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