One of the other points to bring up, I think, is that the Caiman proposal/architecture calls for something that's conceptually similar to live upgrade (upgrading something other than the running root, then being able to fall back to something if the upgrade fails) but is not actually live upgrade. Current issues with the LU implementation will (I sincerely hope) not be reflected in the new world. Certainly ZFS snapshots and other capabilities make a lot of the alternate-root-upgrade concepts easier than they currently are...and we'd hope to have learned from LU appropriately before moving forward.
Casper.Dik at Sun.COM wrote: <snip> > But the argument is that we need the ordinary upgrade installs. > > > liveupgrades are MUCH more operator intensive, they take longer (with > less down time) and they are error prone. > > Forcing liveupgrade on all users will increase TCO. > > And I am not convinced that the marginal cost savings we may have can even > be measured. > > Casper > -- Eric J. Ray Software Engineering Manager Solaris Install Sun Microsystems 303-223-7843 (direct)/x81067 eric.ray at sun.com
