AIX 5L Features and Benefits

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AIX - FS Commands

AIX - PV Commands

AIX - LV Commands

AIX - VG Commands

AIX Performance Monitoring - Nmon

AIX Performance Monitoring - Nmon

Nmon is a very useful command to determine the real time usage of resources in the system.Following are the sample report produced by nmon.

The useful options are c(CPU),m(Memory),t(top process).

AIX Performance Monitoring - vmstat

AIX Performance Monitoring - vmstat

vmstat

Statistics about virtual memory and cpu/hard disk usage.

Example:

vmstat hdisk0 hdisk1 5 (Display various statistics every 5 seconds)

AIX Performance Monitoring - tprof

AIX Performance Monitoring - tprof

tprof

Detailed profile of CPU usage by an application. Provides an estimate of CPU usage for each routine in a profile. Useful to determine where an application maybe CPU bound

AIX Performance Monitoring - svmon

AIX Performance Monitoring - svmon

svmon

Virtual memory monitor that captures a snapshot of the current contents of both real and virtual memory, and summarizes the contents. Useful for determining which processes are using the most memory.

AIX Performance Monitoring - Sar

AIX Performance Monitoring - Sar

sar

System Activity Recorder utility found on all UNIX systems that monitors various system functions like

-cpu

-hard disk

-terminal IO

-number of files open

-processes running

Use cron to execute sar at specific times based on workload, and the sa1 and sa2 scripts to maintain a report history of system usage.