diff --git a/roles/core/cluster/tasks/storage.yml b/roles/core/cluster/tasks/storage.yml
index 6389d3bc..c23d5fda 100644
--- a/roles/core/cluster/tasks/storage.yml
+++ b/roles/core/cluster/tasks/storage.yml
@@ -56,6 +56,40 @@
     - "{{ scale_storage }}"
     - disks
 
+#
+# NSD device discovery script
+#
+
+- block:  ## run_once: true
+    - name: install | Stat user defined nsddevice disk discovery script
+      stat:
+        path: "{{ scale_user_created_nsddevices_file_path }}"
+      register: scale_user_creatednsddevices
+      run_once: true
+      delegate_to: localhost
+
+    - name: install | Check user defined nsddevice disk discovery script
+      assert:
+        that: scale_user_creatednsddevices.stat.exists
+        msg: >-
+          Please set the variable 'scale_user_created_nsddevices_file_path' to point to the
+          correct user defined nsddevices script (accessible on Ansible control machine)!
+      run_once: true
+      delegate_to: localhost
+
+    #
+    # Copy nsd device script to the /var/mmfs/etc/
+    #
+
+    - name: install | Copy user defined nsddevice disk discovery script to the node
+      copy:
+        src: "{{ scale_user_created_nsddevices_file_path }}"
+        dest: "{{ scale_user_created_nsddevices_systems_path }}"
+        mode: a+x
+      when: scale_user_creatednsddevices.stat.exists
+
+  when: scale_user_defined_nsddevices_discovery | bool
+
 - block:  ## run_once: true
     - name: storage | Consolidate defined NSDs
       set_fact:
diff --git a/roles/core/cluster/tasks/storage_disk.yml b/roles/core/cluster/tasks/storage_disk.yml
index 630a7acf..573b7dc8 100644
--- a/roles/core/cluster/tasks/storage_disk.yml
+++ b/roles/core/cluster/tasks/storage_disk.yml
@@ -38,6 +38,40 @@
   with_items:
     - "{{ scale_disks }}"
 
+#
+# NSD device discovery script
+#
+
+- block:  ## run_once: true
+    - name: install | Stat user defined nsddevice disk discovery script
+      stat:
+        path: "{{ scale_user_created_nsddevices_file_path }}"
+      register: scale_user_creatednsddevices
+      run_once: true
+      delegate_to: localhost
+
+    - name: install | Check user defined nsddevice disk discovery script
+      assert:
+        that: scale_user_creatednsddevices.stat.exists
+        msg: >-
+          Please set the variable 'scale_user_created_nsddevices_file_path' to point to the
+          correct user defined nsddevices script (accessible on Ansible control machine)!
+      run_once: true
+      delegate_to: localhost
+
+    #
+    # Copy nsd device script to the /var/mmfs/etc/
+    #
+
+    - name: install | Copy user defined nsddevice disk discovery script to the node
+      copy:
+        src: "{{ scale_user_created_nsddevices_file_path }}"
+        dest: "{{ scale_user_created_nsddevices_systems_path }}"
+        mode: a+x
+      when: scale_user_creatednsddevices.stat.exists
+
+  when: scale_user_defined_nsddevices_discovery | bool
+
 - block:  ## run_once: true
     - name: storage | Consolidate defined filesystem parameters
       set_fact:
diff --git a/roles/core/cluster/vars/main.yml b/roles/core/cluster/vars/main.yml
index 7abdb4cc..4452844b 100644
--- a/roles/core/cluster/vars/main.yml
+++ b/roles/core/cluster/vars/main.yml
@@ -32,5 +32,10 @@ gpfs_cluster_system_profile:
 # user defined profile needs to be installed inside this directory
 scale_cluster_profile_system_path: /var/mmfs/etc/
 
+# user defined nsd device script needs to be installed inside this directory
+scale_user_created_nsddevices_systems_path: /var/mmfs/etc/nsddevices
+
+scale_user_defined_nsddevices_discovery: false
+
 # default mm command exection path
 scale_command_path: /usr/lpp/mmfs/bin/
diff --git a/samples/set_json_variables.yml b/samples/set_json_variables.yml
index ac4dadf6..2b6bd75e 100644
--- a/samples/set_json_variables.yml
+++ b/samples/set_json_variables.yml
@@ -63,6 +63,8 @@
      scale_protocols: "{{ scale_protocols | default(omit) }}"
      scale_hdfs_cluster: "{{ scale_hdfs_cluster | default(omit) }}"
      scale_cluster_config: "{{ scale_cluster | default(omit) }}"
+     scale_user_created_nsddevices_file_path: "{{ scale_cluster.scale_user_created_nsddevices_file_path | default(omit) }}"
+     scale_user_defined_nsddevices_discovery: "{{ scale_cluster.scale_user_defined_nsddevices_discovery | default(false) }}"
     loop: "{{ node_details }}"
   tags:
   - scale_inventory