marksmithusa wrote:Oracle also strongly recommend you run exachk on your system on a regular basis - at least once per quarter. Be sure to download a fresh copy of it each time you run as it is updated frequently. It is also recommended to run exachk a week or so before any planned maintenance (like software upgrades, patch installs, etc) so you have time to address any findings/recommendations. And also run it again at the completion of any planned maintenance to ensure that patches/updates have installed successfully and all recommended settings remain in place. Note 1070954.1 is the place to go.
Using 'exachk' is a very good idea. Oracle will run exachk after they've installed the system, but you can always run it yourself to verify (it's easy enough).