Capacity Planning for Electronic Commerce
Please see "Management Decision Problem File - CPU_Usage_Graph.xls"
Your server supports primarily U.S. customers who access the Web site during the day and early evening. I/O usage should be kept below 70 percent if the CPU is very busy so that the CPU does not waste machine cycles looking for data. I/O usage is high between 1 a.m. and 6 a.m. because the firm backs up its data stored on disk when the CPU is not busy.