All the information that OnSNMP provides is available from other sources, such as the system catalog tables, the sysmaster and sysutils databases, dbaccess calls, and the onstat utility. However, the system catalog tables and the onstat utility refer only to a single database, and the sysmaster and sysutils databases refer only to a single database server or coserver. OnSNMP provides information that lets an SNMP Network Manager monitor all the Informix databases that are on a network. Figure 7 illustrates this concept.