+------ Ian Collins wrote (Fri, 17-Sep-2010, 14:28 +1200): | | OpenSolaris doesn't have sparse zones, so there nothing to support. | | If I remember the threads at the time, they were (rightly) considered | unnecessary now we use ZFS for zone roots.
I have yet to find those discussions or any recent roadmaps (cough), but I have found this FAQ entry: http://hub.opensolaris.org/bin/view/Community+Group+zones/faq#HQWhycantIusesparserootzones Q: Why can't I use sparse root zones? A: The sparse root type of zone describes a fundamental interaction between zones and the package management system, and IPS doesn't support this concept. BUT, we're working on providing the positive attributes of sparse root zones in different ways: * reduced memory footprint * reduced disk footprint * centralized control of zone's software * security due to read-only mounts * faster install/upgrade times * fewer bits to migrate across systems [Added June 2009] I presume that some of these will depend on ZFS features. Regards, Chuck _______________________________________________ opensolaris-discuss mailing list opensolaris-discuss@opensolaris.org
