diff --git a/docs/source/advanced/networks/infiniband/mlnxofed_ib_install_v2_diskful.rst b/docs/source/advanced/networks/infiniband/mlnxofed_ib_install_v2_diskful.rst
index 1dc68fc0a..b1eee7fff 100644
--- a/docs/source/advanced/networks/infiniband/mlnxofed_ib_install_v2_diskful.rst
+++ b/docs/source/advanced/networks/infiniband/mlnxofed_ib_install_v2_diskful.rst
@@ -55,8 +55,16 @@ Configuration for Diskful Installation
 	rsetboot <node> net
 	rpower <node> reset
 
-  After installation, you can login target ndoe and issue ``ibstat`` command to verify if your IB driver works well. if everything is fine, you can get the IB apater information ::
-	
+  **[Note]**: 
+
+  * In RHEL7.x, after performing all steps above, ``openibd`` doesn't work well. you can resolve this problem depending on `Mellanox OFED Linux Release Notes <http://www.mellanox.com/related-docs/prod_software/Mellanox_OFED_Linux_Release_Notes_3_1-1_0_5.pdf>`_ by yourself. But reboot one more time can resolve all of these complex issues. so **we strongly recommend reboot machine again to avoid unexpected problem in RHEL7.x.**  
+
+  * If you performed firmware updates, i.e. you didn't pass ``--without-fw-update`` to option ``-m`` of ``mlnxofed_ib_install``, **reboot machine for all distro**
+
+  After steps above, you can login target ndoe and find the Mellanox IB drives are located under ``/lib/modules/<kernel_version>/extra/``. 
+
+  Issue ``ibstat`` command you can get the IB apater information ::
+
     [root@server ~]# ibstat
     CA 'mlx4_0'
         CA type: MT4099
@@ -84,4 +92,4 @@ Configuration for Diskful Installation
                 SM lid: 0
                 Capability mask: 0x02594868
                 Port GUID: 0x5cf3fc000004ec04
-                Link layer: InfiniBand
\ No newline at end of file
+                Link layer: InfiniBand