Chapter Summary

   

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System monitoring is important for performance tuning and discovering bottlenecks. HP-UX provides command-line utilities that can be used to get information about different system components . The iostat command is used for monitoring disk activity. To monitor swap space, you can use the vmstat command. Network activity can be monitored using the netstat and lanadmin commands. There are two full- screen-based tools called top and sar . These provide a handful of information about different system components.

GlancePlus can be installed separately and provides text as well as graphic interfaces that show system activity. It provides detailed reports about activities taking place on the system. Of all the tools mentioned in this chapter, GlancePlus is the most comprehensive.

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