Linked by David Adams on Wed 16th Apr 2008 15:35 UTC, submitted by R_T_F_M
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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Member since:
2006-01-19
I think this survey is not representative.
Why should the numbers vary THAT much, just from one year to the next. There usually is not that much operating system change to justify this large difference.
I think what we see here is statistical noise. A year has 8760 hours, and looking at values of 0 to 10 hours MUST be a noisy signal. For example, if you measure a current of 1000 A, and scale your Y-Axis from 999 to 1001, you will likely see "huge" spikes of probably 0.5 A. Then you would compare the "Microsoft" Powerline which delivers 999.5 A to the AIX Powerline which provides 1000 A.
You simply HAVE to see statistical noise. Even more so this has to be true for uptime. Make a survey with 10000 responses, then we start talking about reliability.
Another flawed piece of art by Laura Didio. This time not pro Microsoft, but pro UNIX. Probably she got invited to a nice Hotel somewhere by IBM to get a list of customers to ask.
Analysts sell out without obviously seeming to do so, that is their business model.