| What 99.9% Uptime Really Means|
It has become fashionable to claim over 99.9% reliability, especially
in the Microsoft camp. Web hosting companies, application servers, database
servers, why, even Microsoft and friends (Compaq, Dell) have been touting
this number as if it's a big deal.
99.9% uptime amounts to 8.766 hours of downtime a year. With an average reboot of Windows NT/2000
servers taking 5 minutes, this amounts to 525 unscheduled reboots per year,
which amounts to over 10 per week -- more than once a day! Holy cow!!
Derived from Competing with Linux
FYI: I run both Unix and NT for different tasks.
The old Kamat.com server running Unix (BSD) never needed a reboot in 14 months of its use.
The new Kamat.com server running Linux since November of 2001 has not been down even for a second.
So, achieving 99.9% uptime with Microsoft Windows is very easy. Just reboot the server, about twice a day.
Unix Vs. NT (in the context of a Web application)
|(Comments Disabled for Now. Sorry!)||First Written: Friday, January 4, 2002|
Last Modified: 1/4/2002