Dell OpenManage Server Administrator Version 7.3 Command Line Interface Guide

Use the -outa option when you want to append new command results to data stored in a previously written file. For example, at 11:00 A.M. you capture fan probe RPM readings for fan probe 0 on the system and write the results to a file called fans.txt. To compare these results with output for the same probe obtained four hours later, you can use the -outa command to append the new output to fans.txt.

omreport chassis fans index=0 -outa fans.txt

omreport mainsystem fans index=0 -outa fans.txt

You can use a text editor to insert the time that each block of data was captured. In comparing the two snapshots for fan probe 0, you can see that the second report shows several changes. The reading of fan RPM has increased by 621 RPM but is still within normal range. Someone has raised the minimum warning threshold by 200 RPM and has decreased the maximum warning threshold by 2000 RPM.