7.2.4 Notes on configuring the environment of an SSO cluster system

When you configure the environment of a cluster system, note the following points:

• User who configures the environment

  The user who configures the environment of an SSO cluster system must be a member of the Administrators group (in Windows), or a superuser (in Linux).

• Copy destination of the cluster control script

  Place copies of the cluster control script on the local disks of both the active and standby nodes. Do not place the cluster control script on the shared disk. If you do so and the shared disk fails, SSO cannot access the script that controls resources, and therefore cannot operate correctly.

• Hosts on which SSO is to be installed

  Install SSO on both the active and standby machines.

• About the NNM linkage policies

  The cluster environment setting command executed when a cluster environment is configured sets 1 for the nnm-coop-policy: key in the ssospmd action definition file (ssospmd.def). This key pertains to the NNM linkage policy, and the value of 1 indicates that the status changes to DEGENERATING if linkage is impossible. The cluster environment setting command executed when the cluster settings are removed sets 0 for that key. The value of 0 indicates that the status changes to SUSPENDING if linkage is impossible.

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