IBM SG24-5131-00 Manual Do Utilizador

HACMP Installation and Cluster Definition 

  • The network modules

You define the cluster topology by entering information about each 
component into HACMP-specific ODM classes. You enter the HACMP ODM 
data by using the HACMP SMIT interface or the VSM utility 

xhacmpm

. The 

xhacmpm

 utility is an X Windows tool for creating cluster configurations using 

icons to represent cluster components. For more information about the 

xhacmpm

 utility, see the administrative facilities chapter of the 

HACMP for AIX, 

Version 4.3: Concepts and Facilities, SC23-4276.

The cluster ID and name identifies a cluster in an HACMP environment. The 
cluster ID and name must be unique for each cluster defined.

Cluster IDs have to be a positive integer in the range from 1 through 99999, 
and the cluster name is a text string of up to 31 alphanumeric characters, 
including underscores. It doesn’t necessarily need to match the hostname.

The HACMP software uses this information to create the cluster entries for 
the ODM.

After defining the cluster name and ID, cluster nodes have to be defined. As 
above, this is usually done through 

smit hacmp

. Each of the cluster nodes 

needs a unique name, so the cluster manager can address them.

Again, a node name is a text string of up to 31 alphanumeric characters that 
can contain underscores.

You can add more than one node at a time by separating them with 
whitespace characters.

The SP Switch network module can support multiple clusters; therefore, its 
settings should remain at their default values to avoid affecting HACMP 
event scripts. If you must change these settings, see the chapter on 
changing the cluster topology in the 

HACMP for AIX, Version 4.3: 

Administration Guide, SC23-4279 for more information.