Date: Tue, 2 Jun 2009 22:55:43 +0300 From: Dan Naumov <dan.naumov@gmail.com> To: Zaphod Beeblebrox <zbeeble@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: ZFS NAS configuration question Message-ID: <cf9b1ee00906021255j340a90a1pe041044d7fdffb26@mail.gmail.com> In-Reply-To: <cf9b1ee00906021239t17d25cbcx4affa4416b9ad783@mail.gmail.com> References: <cf9b1ee00905301141t1945c053x43ce915b7085326e@mail.gmail.com> <8B50CE3F-FCC5-42D6-8FFE-591178F3DFB6@ish.com.au> <5f67a8c40906021147h48bc1c36y5de42fdc0d18677e@mail.gmail.com> <cf9b1ee00906021239t17d25cbcx4affa4416b9ad783@mail.gmail.com>
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A little more info for the (perhaps) curious: Managing Multiple Boot Environments: http://dlc.sun.com/osol/docs/content/2009.06/getstart/bootenv.html#bootenvm= gr Introduction to Boot Environments: http://dlc.sun.com/osol/docs/content/2009.06/snapupgrade/index.html - Dan Naumov On Tue, Jun 2, 2009 at 10:39 PM, Dan Naumov <dan.naumov@gmail.com> wrote: > > This reminds me. I was reading the release and upgrade notes of OpenSolar= is 2009.6 and noted one thing about upgrading from a previous version to th= e new one:: > > When you pick the "upgrade OS" option in the OpenSolaris installer, it wi= ll check if you are using a ZFS root partition and if you do, it intelligen= tly suggests to take a current snapshot of the root filesystem. After you f= inish the upgrade and do a reboot, the boot menu offers you the option of b= ooting the new upgraded version of the OS or alternatively _booting from th= e snapshot taken by the upgrade installation procedure_. > > Reading that made me pause for a second and made me go "WOW", this is how= UNIX system upgrades should be done. Any hope of us lowly users ever seein= g something like this implemented in FreeBSD? :) > > - Dan Naumov > > > > > > On Tue, Jun 2, 2009 at 9:47 PM, Zaphod Beeblebrox <zbeeble@gmail.com> wro= te: >> >> >> The system boots from a pair of drives in a gmirror.=A0 Mot because you = can't boot from ZFS, but because it's just so darn stable (and it predates = the use of ZFS). >> >> Really there are two camps here --- booting from ZFS is the use of ZFS a= s the machine's own filesystem.=A0 This is one goal of ZFS that is somewhat= imperfect on FreeBSD at the momment.=A0 ZFS file servers are another goal = where booting from ZFS is not really required and only marginally beneficia= l. >> >> >
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