You work for the Contoso Corporation. You have a server that acts as a file server for clients. You must make sure that the server is up at all times. What would you recommend?

Question

rsmith6559 · Answer

My Linux machines, except for power outages, are pretty easy to keep up about 4.5 9's ( 99.995% of the time ).  That's about 8 minutes of downtime per year.

My Macs, may make 90 days before needing rebooting.

anonymous · Answer

I don't know what you is talking about

rsmith6559 · Answer

Uptimes are one of the key metrics for servers.  If the machine isn't up, it isn't serving.  Uptime is usually expressed as a percentage.  If a machine is up 99.9% of the time, we refer to that as 3 9's uptime.  4 9's would be 99.99% uptime, 4 and a half - 99.995%,  5 9's is 99.999% uptime.

Unix's with a good admin can hit these levels of service.  The longest that I've had a machine up without a reboot is about 23 months, about 730 days.