4.3.1.1 Configuring Resources for Resource Groups

Once you have defined resource groups, you further configure them by assigning cluster resources to one resource group or another. You can configure resource groups even if a node is powered down. However, SMIT cannot list possible shared resources for the node (making configuration errors likely).

Note

You cannot configure a resource group until you have completed the information on the Add a Resource Group screen.

Note

If you configure a cascading resource group with an NFS mount point, you must also configure the resource to use IP Address Takeover. If you do not do this, takeover results are unpredictable.You should also set the field value Filesystems Mounted Before IP Configured to true so that the takeover process proceeds correctly.

Note

When setting up a cascading resource with an IP Address takeover configuration, each cluster node should be configured in no more than (N+1) resource groups on a particular network. Here, N is the number of standby adapters on a particular node and network.

The following describes the different possibilities for resources that might be added to a resource group:

Table 20. Options Configuring Resources for a Resource Group

Service IP Label

If IP address takeover is being used, list the IP label to be

 

moved when this resource group is taken over. Press F4

 

to see a list of valid IP labels. These include addresses

 

which rotate or may be taken over.

 

 

HTY Service IP Label

NTX adapters are not supported by HACMP for AIX 4.3

 

 

File Systems

Identify the file systems to include in this resource group.

 

Press F4 to see a list of the file systems. When you enter

 

a file system in this field, the HACMP for AIX software

 

determines the correct values for the Volume Groups and

 

Raw Disk PVIDs fields.

 

 

HACMP Installation and Cluster Definition 109

Page 127
Image 127
IBM SG24-5131-00 manual Configuring Resources for Resource Groups, Service IP Label