Here’s a set of questions of interest to very few:
What major proprietary UNIX variants would you expect to see in a medium-to-large data center? How many? Two? One? All of them? How many minor UNIX variants? How many open UNIX variants?
Should I leave the polls to someone who knows how next time?
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all of them?
In our rather modest datacenter you'll find HPUX as the main variant with Sun and Linux tied for second. Unknown to management are several 'black-box' FreeBSD instances (such as what comes with the F5 hardware), and buried way back in a real black box you'll find Linux OS/390. While not in our datacenter I did run across a 1990ish version of AT&T Unix a few months ago, still alive and kicking.
hmmm
solaris, freebsd, fedora. 3.
the good ones
hope that helps.
Solaris and Linux
In my experience, it's been Solaris Solaris Linux, and now increasingly Solaris Linux Linux. HP-UX or AIX shows up in some dusty corner, used by a particular department, but usually it' SUN as the heavy duty platform.
I dream of seeing Mac OS X in more data center's
in my day-to-day experience
Stuff I work on, on a day to day basis..
AIX 4.1 to 5.2, several variants of Saolaris and at least two instances of DEC's UNIX.