ORA-29704

Error: ORA-29704: cannot specify ACTIVE_INSTANCE_COUNT in 8.1.5 or earlier release

Causa: The ACTIVE_INSTANCE_COUNT initialization parameter was specified when one of the instances in the cluster was running Oracle 8.1.5 or an earlier release.

Acción: Restart the instance without specifying the ACTIVE_INSTANCE_COUNT initialization parameter. Or, upgrade all instances to Oracle 8.1.6 or later release and then specify the parameter.