I used to work at an AIX shop. I gotta say, AIX is pretty solid. Back in the late 90's, it had features like volume management long before LVM was available in

I used to work at an AIX shop. I gotta say, AIX is pretty solid. Back in the late 90's, it had features like volume management long before LVM was available in Linux. They also had a great virtualization story early on (LPAR.)