ARS Technica member Axatax documented the decommissioning of INTEL, a NetWare 3.12 based file and print sharing server that achieved an uptime of over 6030 days (16.5 years)! Sadly, the system had to be taken offline as its 5.25" 800MB Quantum SCSI HDDs were making disconcerting noises from their bearings. You can check it out over here.
Then it's down to work. Microsoft can keep its fancy GUIs and graphical server operating systems. NetWare 3.12 is where it's at: bulletproof file and print sharing. The server, named INTEL after its process, needs an update, so you install it and reboot. It comes up fine, so you get on with the rest of your day.
Sixteen and a half years later, INTEL's hard disks—a pair of full height 5.25 inch 800 MB Quantum SCSI devices—are making some disconcerting noises from their bearings, and you're tired of the complaints. It's time to turn off the old warhorse.