| This section shows how companies such as IBM provide customers with information on performance and use of the Web sites hosted by IBM. This is related to the "lessons learned" from hosting the Olympic and other sporting and event Web sites. Customers are very interested in how their Web sites are performing and who is accessing what parts of the sites. Details on Server Utilization, Network Utilization, and Problems with Availability One area that must be addressed first is how to provide customers with the information they need on server utilization, network utilization, and problems with system availability. The following graphs (Figures 15-14 and 15-15) show information for the Exchange public site described earlier. This server measurement data at IBM server farms is measured with standard tools including IBM's Server Resource Management (SRM) and BMC Patrol. These tools are used to report historical trends of key server resources, such as CPU, memory, and disk usage. Figure 15-14. Providing front-end (Internet) bandwidth utilization information for companies. 
Figure 15-15. Providing server utilization information for companies. 
How Web Sites Are Being Used Customers also want to know how their Web sites are being used (e.g., number of hits, hotspots, number of new visitors , which pages are most popular, etc.). The following graphs (Figures 15-16 and 15-17) show information for the Exchange public site discussed earlier. These graphs were produced by "Surfaid" a service IBM provides to their Web customers. Figure 15-16. Providing information on which pages are most popular. 
Figure 15-17. Geography of users (outside NA). 
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