> I was just wondering if I should reboot some servers that are running > over 180 days? > > They are still stable and have no problems, also top shows no zombie > processes or such, but maybe it's better for the hardware (like ext3 > disk checks f.e.) to reboot every six months... > > btw this uptime really confirms me how stable Centos 4.x really is and > so I wonder how long some people's uptimes on the list are ;) personally no - i never reboot unless i have to and i have some linux boxes running 4 years uptime or more. gotcha though: be careful to tune the fs to not automagically fsck the filesystem on boot. When you have a large fileserver or mail store that even a scheduled reboot can cause hours of downtime as it runs its 'required' fsck!