Collecting nmon outputs is essential for later analysis in case of e.g. performance issues. Usually data is collected on a daily basis. It's easy to run nmon from the cron at midnight for 24 hours, but if your server reboots, you have to calculate, how long the nmon has to run until midnight. Here I miss a command switch that would tell nmon to run until midnight...
My nmon data collection setup is as follows:
Create a separate filesystem for nmon data files
Schedule nmon in cron
Put nmon into inittab
Compress old nmon files,... [More]