These are 11 of my favorite things!
By Mike Gerdts-Oracle on Nov 09, 2011
With today's launch of Solaris 11, I felt it would be good to introduce 11 of my favorite things about zones in Solaris 11.
- Minimized by default. The default zone installation size is about 420 MB and has a very strong selection of the tools you expect in a modern UNIX installation. It's also very simple to find (e.g. pkg search -r hg) and install (e.g. pkg install mercurial) that tool that you use all the time that isn't in the default installation.
- It's easy to have different packages in the global zone and in each non-global zone. In fact, the default is to have the solaris-large-server group package installed in the global zone and the solaris-small-server installed in each zone.
- Zone boot environments, synchronized with global zone boot environments.
- Immutable zones allows you to turn all or part of a zone read-only. Even if a bad guy (or a mostly good guy doing something bad) running as root cannot add, delete, or modify protected files.
- Dedicated IP stack by default with automatic configuration with anets.
- The same zfs dataset layout in the global zone and non-global zones.
- Dataset aliasing.
- The automated installer configuration (AI manifest) used to install a global zone and a non-global zone are almost the same (and you can install zones automatically as part of a global zone installation installation).
- Performance monitoring with zonestat.
- Easy p2v and v2v using zfs send streams.
- solaris10 branded zones allow you to easily begin to take advantage of some Solaris 11 goodies while still running Solaris 10.