8x00 family of Disk Arrays 3.02.00 (AA-RW7SL-TE, March 2009)

NOTE:

You must repeat the following procedure on all nodes in the cluster, one at a time.

1. If MSCS is installed on your system, move all cluster resources owned by the current node to

another node in the cluster. If this is not applicable, proceed to step 2.

2. Navigate to the HP MPIO EVA DSM installation directory <install_dir> on the current node

using Windows Explorer.

3. Double-click the registry file (depending on the operating system you are using):

• For Windows Server 2003 (32-bit):

<Target_Dir>\x86\hpeaadsm_pr_on.reg

• For Windows Server 2003 (IA64):

<Target_Dir>\IA64\hpeaadsm_pr_on.reg

• For Windows Server 2003 x64 Edition:

<Target_Dir>\AMD64\hpeaadsm_pr_on.reg

NOTE:

The <Target_Dir> refers to the folder which you have selected during the HP MPIO EVA

DSM installation. The default installation directory is

%ProgramFiles%\Hewlett-Packard\HP MPIO DSM\EVA DSM. In Windows Server

2008 Cluster, the load balancing for the cluster devices is turned on by default.

4. Follow the on-screen instructions.

5. Reboot the system for the new registry parameter to take effect.

NOTE:

Once all the nodes in the cluster have the support for load balancing in MSCS enabled, you can

change the load-balancing policy for the cluster devices using the HP DSM CLI or HP MPIO DSM

manager.

Disabling support for load balancing in MSCS environments

To disable the load balancing support in MSCS environments in HP MPIO EVA DSM, complete the

following steps:

NOTE:

You must repeat the following procedure on all nodes in the cluster, one at a time.

1. If MSCS is installed on your system, move all cluster resources owned by the current node to

another node in the cluster. If this is not applicable, proceed to step 2.

Support for load balancing in Microsoft Cluster Server environments for Windows Server 200324