You can use System Information to create configuration data sets that you can then use to compare past and present configurations. Basically, what you’ll do is create a configuration data set when your system is functioning normally. Then, if your system begins to behave oddly, you can compare the current configuration data set with the one that you created earlier and see what has changed.
To save a configuration data set as a System Information File (.NFO file) just pull down the File menu and select the Save command. To save a configuration data set as a straight text file, pull down the File menu and select the Export command. Once you click the Save button, System Information will refresh its entire database before creating the file.
Either way you save it, be sure that you append the date to the end of the file name. For example, you might use the file name SysInfo 8-5-12.nfo.
For more details on how to use configuration data sets, see the article Use System Information to create configuration data sets for quicker troubleshooting.
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