Linked by David Adams on Wed 16th Apr 2008 15:35 UTC, submitted by R_T_F_M
OSNews, Generic OSes Yankee Group's second annual Server Operating System Reliability survey polled 700 users from 27 countries worldwide. The latest independent, non-sponsored Web-based survey revealed that all versions of UNIX -- which typically carry very high workloads -- are near bulletproof, achieving 99.999% reliability. IBM's AIX UNIX led all server operating systems for reliability with just over 30 minutes of per server annual downtime but Hewlett-Packard and Sun Microsystems also got high scores.
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Using this measurement...
by theTSF on Wed 16th Apr 2008 16:07 UTC
theTSF
Member since:
2005-09-27

Downtime average per year may not always be a true test of the OS.

Windows/Linux tend to run on diverse hardware. Some without hotswap drives and such so harware failures could account for the downtime. Vs. the Big Unix systems which have hot swap drives and failover systems, build in at the hardware level.

Also the Userfriendlyness plays a role too, not the actual program reialability. So if it goes down how easy is it for the expert to fix the problem.