Am 29.01.2013 um 20:03 schrieb Tim Evans <tkevans at tkevans.com>: > > Thanks to everyone for their replies. I suppose it's not possible in > this forum to ask such a question and not get into religion. Kinda like > the U.S. Congress. > > No one has yet shown how a byte-for-byte, fully redundant, bootable > disk(set) can be created and kept up to date that will allow immediate > recovery from a catastrophic failure of the primary disk(set) with > nothing more than a reboot. > > FWIW, Solaris' problems are not technical. Rather, they're Oracle's > licensing and support policies that have essentially fired all its small > system customers. > I have to say, in my experience the LU-process works (reasonably) well for systems without zones. Once you have zones, it gets much, much more complicated. It's a nice idea, though, and to me it makes sense (you don't want the system to be in a state where only half the patches are installed, however minuscule the effects of that may be).