[CentOS] Reboots

> ***Do you perform downtimes just for the purpose of rebooting the systems?
> ***Is there a recommended interval Linux system should be rebooted?
> 

Personal preference here, besides all the things mentioned
on other posts.

The "POST" routine can give you early warnings of pending
hardware failures that might go un-noticed until complete
failure otherwise.

Scheduled maintence reboots if for no other reason
should be done.

my 2¢