You must configure the node computing power if you are
using speed factor or work factor overrides to configure your multiple
tier configuration.
Before you begin
Configure work factor or speed factor overrides. See
Configuring work factors in multiple tier configurations and
Overriding work factor estimates for
more information. You must know which kind of node you are configuring:
- A managed node is a node with an application server and
a node agent that belongs to a cell. Managed nodes can have custom
properties defined.
- An unmanaged node is a node that is defined in the cell
topology that does not have a node agent that manages the process.
An unmanaged node is typically used to manage Web servers. Unmanaged
nodes are defined in the administrative console and can have custom
properties defined.
- A node that is not managed and not unmanaged does not have
any information stored in the configuration files. You cannot define
custom properties for nodes that are not managed and not unmanaged.
About this task
Define node computing power when you are using speed factor
or work factor overrides to define your multiple tier configuration.
Procedure
- If your node is managed or unmanaged, specify the node
speed using the node.speed custom property.
- In the administrative console, click System administration
> Nodes >node_name> Custom Properties > New.
- Enter the Name as node.speed.
- Enter the Value. The
value equals the node speed in MHz. In a multi-processor node, multiply
the processor speed by the number of processors on a multi-processor
node.
- If your node is not managed and not unmanaged, configure
the external.placement custom property. For more information
about the external.placement custom property, see Autonomic request flow manager advanced custom properties.
- Compose a string that defines a case for each external
node that is not managed and not unmanaged. Each case is
separated by a semicolon. Each case consists of information about
the node that is defined in the following pattern:
nodeName:nodeSpeed:plmtlist
The
nodeName variable is the name of the node. The nodeSpeed variable
is the speed of the node. The plmtlist is a placement
list of deployment targets. Separate the deployment targets with
commas. For example, you have the DBA and DBB unmonitored
nodes in the SysX cell. The DBA node has a power of 4.7. The DBB node
has a power of 2.7. There are two external clusters in the SysX cell
that are named DB1 and DB2. The DB1 cluster is placed on the DBA node
only. The DB2 cluster is placed on both the DBA node and the DBB node.
Use the following string to define this configuration:../SysX/DBA:4.7:DB1,DB2; ../SysX/DBB:2.7:DB2
- Using the string that describes the external nodes,
create the external.placement custom property. In the administrative
console, click System administration > Cell > Custom Properties
> New. Enter the name of the custom property as external.placement.
The Value equals the string that you created
to define the external nodes.