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Installation and Migration Guide


Task E. Configure High Availability Cluster Multi-Processing

This section describes the steps you take to setup High Availability Cluster Multi-Processing (HACMP) to work with HACWS.

Step 24: Define the cluster environment

Follow the instructions in the "Defining the cluster topology" chapter of the HACMP for AIX: Installation Guide to define the cluster environment. You must configure HACMP to use hardware address swapping in conjunction with IP address takeover on any service adapter belonging to the SP Ethernet network or whose name matches the host name of the primary control workstation.

The service adapter dutchess.xyz.com from the sample scenario, (see the |"Planning for a high availability control workstation" chapter |in RS/6000 SP: Planning, Volume 2, Control Workstation and Software Environment) falls into both categories. The "Planning TCP/IP networks" chapter of the HACMP for AIX: Planning Guide explains hardware address swapping.

As you define your cluster environment, you may find it helpful to read the following examples which reference the example configuration discussed in the |"Planning for a high availability control workstation" chapter |in RS/6000 SP: Planning, Volume 2, Control Workstation and Software Environment.

Step 24.1: Define the cluster ID and name

Follow the instructions in the HACMP for AIX: Installation Guide or the HACMP for AIX: Enhanced Scalability Installation and Administration Guide.

Step 24.2: Define nodes to HACMP

In the sample scenario discussed in RS/6000 SP: Planning, Volume 2, Control Workstation and Software Environment, the host names of the control workstations are dutchess.xyz.com and ulster.xyz.com. HACMP does not care whether you use the short or long host names, so use the short host names. The sample scenario short hostnames are dutchess and ulster. Follow the instructions in the HACMP for AIX: Installation Guide or the HACMP for AIX: Enhanced Scalability Installation and Administration Guide to define the cluster nodes to HACMP.

Step 24.3: Define adapters to HACMP

In the sample scenario discussed in RS/6000 SP: Planning, Volume 2, Control Workstation and Software Environment, the service address is dutchess.xyz.com. The node dutchess has the boot address dutchess_bt.xyz.com and the node ulster has the boot address ulster_bt.xyz.com. The screens in the following figures show how the sample scenario adapters would be defined to HACMP. Refer to these figures as you follow the instructions in the HACMP for AIX: Installation Guide to define the adapters to HACMP.

Figure 1. Adding an Adapter--Primary Boot Address

+--------------------------------------------------------------------------------+
|Add an Adapter                                                                  |
|                                                                                |
|Type or select values in entry fields.                                          |
|Press Enter AFTER making all desired changes.                                   |
|                                                                                |
|Entry Fields                                                                    |
|* Adapter IP Label                                dutchess_bt                   |
|* Network Type                                    ether                +        |
|* Network Name                                    hacws_en0            +        |
|* Network Attribute                               public               +        |
|* Adapter Function                                boot                 +        |
|Adapter Identifier                                129.40.60.21                  |
|Adapter Hardware Address                                                        |
|Node Name                                         dutchess             +        |
+--------------------------------------------------------------------------------+

Figure 2. Adding an Adapter--Backup Boot Address

+--------------------------------------------------------------------------------+
|Add an Adapter                                                                  |
|                                                                                |
|Type or select values in entry fields.                                          |
|Press Enter AFTER making all desired changes.                                   |
|                                                                                |
|Entry Fields                                                                    |
|* Adapter IP Label                                ulster_bt                     |
|* Network Type                                    ether                +        |
|* Network Name                                    hacws_en0            +        |
|* Network Attribute                               public               +        |
|* Adapter Function                                boot                 +        |
|Adapter Identifier                                129.40.60.22                  |
|Adapter Hardware Address                                                        |
|Node Name                                         ulster               +        |
+--------------------------------------------------------------------------------+

Figure 3. Adding an Adapter--Service Address. Note the Node Name field is blank, and the adapter hardware address field has been completed.

+--------------------------------------------------------------------------------+
|Add an Adapter                                                                  |
|                                                                                |
|Type or select values in entry fields.                                          |
|Press Enter AFTER making all desired changes.                                   |
|                                                                                |
|Entry Fields                                                                    |
|* Adapter IP Label                                dutchess                      |
|* Network Type                                    ether                +        |
|* Network Name                                    hacws_en0            +        |
|* Network Attribute                               public               +        |
|* Adapter Function                                service              +        |
|Adapter Identifier                                129.40.60.99                  |
|Adapter Hardware Address                          0x02608c2d2a10                |
|Node Name                                                              +        |
+--------------------------------------------------------------------------------+

Step 24.4: Configure network modules

Follow the instructions in the HACMP for AIX: Installation Guide or the HACMP for AIX: Enhanced Scalability Installation and Administration Guide.

Step 24.5: Synchronize the cluster definition on all nodes

Follow the instructions in the HACMP for AIX: Installation Guide or the HACMP for AIX: Enhanced Scalability Installation and Administration Guide.

Step 25: Configure the HACWS application server

Follow the instructions in the "Configuring cluster resources" chapter of the HACMP for AIX: Installation Guide or the "Configuring an HACMP/ES cluster" chapter of the HACMP for AIX: Enhanced Scalability Installation and Administration Guide to configure the HACWS application server. Use the following definitions:

Server Name
(Specify a unique name)

Start Script
/usr/sbin/hacws/spcw_apps -ua

Stop Script
/usr/sbin/hacws/spcw_apps -di

Step 26: Define the resource group

Follow the instructions in the "Configuring cluster resources" chapter of the HACMP for AIX: Installation Guide to define the resource group. If you are installing HACMP/ES, follow the instructions in the "Configuring an HACMP/ES cluster" chapter of the HACMP for AIX: Enhanced Scalability Installation and Administration Guide.

Adding a resource group

Use the following options:

ENTER
hacws_group1 for Resource Group Name

SELECT
rotating for Node Relationship

ENTER
The node names of the primary control workstation and backup control workstation for Participating Node Names

PRESS
Ok to complete option selection.

Configuring a resource group

Use the following options:

ENTER
The service addresses identified to HACMP for Service IP Label. You identified these service addresses to HACMP in Step 24: Define the cluster environment (dutchess in Figure 3).

This field can contain multiple network interfaces. You may have to type them out in order to get the SMIT screen to accept them all. You must have at least one network interface name matching the host name of the primary control workstation.

ENTER
The name of your external file system for Filesystems (/spdata or /spdata/sys1).

ENTER
The name of the volume group containing the /spdata or /spdata/sys1 file system for Volume Groups.

ENTER
The server name you used in Step 25: Configure the HACWS application server for Application Servers.

PRESS
Ok to complete option selection.

Complete the rest of the instructions in the "Configuring cluster resources" chapter of the HACMP for AIX: Installation Guide. If you are installing HACMP/ES, finish the instructions in the "Configuring an HACMP/ES cluster" chapter of the HACMP for AIX: Enhanced Scalability Installation and Administration Guide.

Step 27: Verify the cluster and node environment

Follow the instructions in the "Verifying the cluster topology" chapter of the HACMP for AIX: Installation Guide to verify the cluster and node environment.


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