[Attribute] MIN_SIZE [Values and Format] Any nonnegative integer [Description] 
The minimum size of a server pool. If the number of servers contained in a server pool is below the number you specify in this attribute, then Oracle Clusterware automatically moves servers from other pools into this one until that number is met.Note: The value of this optional attribute does not set a hard limit. It governs the priority for server assignment whenever the cluster is reconfigured. The default value is 0.