Learning about sun solaris, dtrace, zfs and smf after calling the old sun boxes, my colleagues set up, old garbage.

These guys were ahead of us for ages.
If you ever wondered, where all your ram goes, when your application starts or wgy it crashes without further notice, try dtrace.

If you ever wondered of a sophisticated reliable init system would look like, look for the smf init system.

If oracle would already open source all the old sun stuff and if other companies would start using the illumos distros, the world would be a better.
Thats where the sun peopke went after oracle bought sun and started pissing off the devs of sun.