diff --git a/service-mgmt/sm-common/src/sm_node_utils.c b/service-mgmt/sm-common/src/sm_node_utils.c
index ade940c9..1c6ee0b3 100644
--- a/service-mgmt/sm-common/src/sm_node_utils.c
+++ b/service-mgmt/sm-common/src/sm_node_utils.c
@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2014-2023 Wind River Systems, Inc.
+// Copyright (c) 2014-2024 Wind River Systems, Inc.
 //
 // SPDX-License-Identifier: Apache-2.0
 //
@@ -18,6 +18,7 @@
 #include "sm_types.h"
 #include "sm_debug.h"
 
+#define SM_NODE_LOCKED_FILE           "/etc/mtc/tmp/.node_locked"
 #define SM_NODE_GO_ENABLE_FILE        "/var/run/goenabled"
 #define SM_NODE_GO_ENABLE_FILE_SIMPLEX "/var/run/.goenabled"
 #define SM_NODE_UNHEALTHY_FILE        "/var/run/.sm_node_unhealthy"
@@ -50,7 +51,7 @@ static SmErrorT sm_node_utils_read_platform_config( const char key[],
     char format[1024];
     char line[1024];
     char val[1024];
-    
+
     value[0] = '\0';
 
     fp = fopen( SM_NODE_PLATFORM_CONFIG_FILE, "r" );
@@ -156,7 +157,7 @@ SmErrorT sm_node_utils_is_aio( bool* is_aio )
     else
     {
         *is_aio = ( IsTrue == _is_aio );
-    } 
+    }
 
     return SM_OKAY;
 }
@@ -346,7 +347,7 @@ SmErrorT sm_node_utils_get_hostname( char node_name[] )
 // ****************************************************************************
 
 // ****************************************************************************
-// Node Utilities - Configuration Complete 
+// Node Utilities - Configuration Complete
 // =======================================
 SmErrorT sm_node_utils_config_complete( bool* complete )
 {
@@ -369,7 +370,7 @@ SmErrorT sm_node_utils_config_complete( bool* complete )
 
     *complete = true;
 
-    return( SM_OKAY );     
+    return( SM_OKAY );
 }
 // ****************************************************************************
 
@@ -381,6 +382,7 @@ typedef enum
     NODE_UNHEALTHY_FILE_EXISTS,
     NODE_DISABLED_LICENSE_INVALID,
     NODE_DISABLED_FAILOVER,
+    NODE_IS_LOCKED,
     NODE_ENABLED
 }SmNodeEnabledBlockingStateT;
 static SmNodeEnabledBlockingStateT blocking_state = BLOCKING_STATE_INIT;
@@ -394,6 +396,7 @@ SmErrorT sm_node_utils_enabled( bool* enabled, char reason_text[] )
     *enabled = false;
     reason_text[0] = '\0';
     const char* goenabled_file = SM_NODE_GO_ENABLE_FILE;
+    const char* node_locked_file = SM_NODE_LOCKED_FILE;
 
     bool is_aio_simplex = false;
     SmErrorT error = sm_node_utils_is_aio_simplex(&is_aio_simplex);
@@ -409,6 +412,20 @@ SmErrorT sm_node_utils_enabled( bool* enabled, char reason_text[] )
         goenabled_file = SM_NODE_GO_ENABLE_FILE_SIMPLEX;
     }
 
+    if(0 == access( node_locked_file, F_OK ))
+    {
+        if(blocking_state != NODE_IS_LOCKED)
+        {
+            blocking_state = NODE_IS_LOCKED;
+            DPRINTFI("Node enable: blocked. Node is locked ; the %s file is present", node_locked_file);
+        }
+
+        snprintf( reason_text, SM_LOG_REASON_TEXT_MAX_CHAR,
+                  "node is locked" );
+
+        return( SM_OKAY );
+    }
+
     if(0 > access( goenabled_file, F_OK ))
     {
         if( ENOENT == errno )
@@ -518,7 +535,7 @@ bool sm_node_utils_set_failover( bool to_disable )
 // ****************************************************************************
 // Node Utilities - Set Unhealthy
 // ==============================
-SmErrorT sm_node_utils_set_unhealthy( void ) 
+SmErrorT sm_node_utils_set_unhealthy( void )
 {
     int fd = open( SM_NODE_UNHEALTHY_FILE,
                    O_RDWR | O_CREAT, S_IRUSR | S_IRGRP | S_IROTH);
@@ -563,13 +580,13 @@ SmErrorT sm_node_utils_is_aio_duplex( bool* is_aio_duplex )
     if( IsUnknown == _is_aio_duplex )
     {
         SmErrorT error;
-        bool is_aio = false;  
+        bool is_aio = false;
         error = sm_node_utils_is_aio( &is_aio );
         if( SM_OKAY != error)
         {
             return error;
         }
-        
+
         if ( !is_aio )
         {
             *is_aio_duplex = false;