CAPACITY PLANNING SECTION

The section is designed to provide the user with a rudimentary linear capacity planning model and should be used for rough approximations only. These estimates assume that an increase in workload will affect the usage of all resources equally. These estimates should be used on days when the load is heaviest to determine approximately how much spare capacity remains at peak times.

Based on the data available in this single sar report, the system should be able to support a moderate increase in workload at peak times, and memory is likely to be the first resource bottleneck. See the following paragraphs for additional information.

The CPU can support an increase in workload of at least 100 percent at peak times. Because some swap space was used and significant page scanning or swapping statistics were not seen, the amount of memory present can probably handle a moderate increase in workload. The busiest disk can support a workload increase of at least 100 percent at peak times. For more information on peak CPU and disk utilization, refer to the Resource Analysis section of this report.

The process table, measured by sar -v, can hold at least twice as many entries as were seen.