Date: Thu, 28 May 2015 10:16:20 +0100 From: krad <kraduk@gmail.com> To: Jon Radel <jon@radel.com> Cc: Baho Utot <baho-utot@columbus.rr.com>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: FreeBSD 10.1 + ZFS Message-ID: <CALfReyfLYdZLSnukaQp9-6PGbAHW35KawnJp88VDdtw6ctbLPw@mail.gmail.com> In-Reply-To: <55662C35.4000802@radel.com> References: <5563939F.2070303@columbus.rr.com> <86oal8gu30.fsf@red.stonehenge.com> <5563A6E0.4010402@columbus.rr.com> <86382kgoi8.fsf@red.stonehenge.com> <20150526030812.8e749982.freebsd@edvax.de> <20150526034748.GA1674@WorkBox.Home> <5564E1CE.2040700@columbus.rr.com> <5564E6F5.1090306@radel.com> <5564EF07.2080603@columbus.rr.com> <20150527000713.GA3257@WorkBox.Home> <CADqw_g%2BrHfZCC4oDRLZYHjYO5BNTTgaejU53062Qmfx8cefO9Q@mail.gmail.com> <SNT146-W323F8A94EFA6EA618FBD27A1CB0@phx.gbl> <55661AA5.9030403@columbus.rr.com> <55662C35.4000802@radel.com>
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Yep it should work but is rather pointless, as a 3 way mirror would be far simpler and probably better performing On 27 May 2015 at 21:42, Jon Radel <jon@radel.com> wrote: > On 5/27/15 3:27 PM, Baho Utot wrote: > >> >> I do understand how ZFS works I am using it (ZFS RAID-Z1) on three boxen >> but not as the root file system. >> >> >> <snip> > >> >> You cannot do RAID-Z2 with three drives only as RAID-Z2 has two parity >> drives >> > You either contradict yourself or you have a shaky understanding of the > word "cannot". Not recommended, quite possibly not the best way to use 3 > disks, sure.... Cannot, well, not so much. > > Personally, I think this discussion might have gotten off to a much better > start if you'd started out by telling us that you couldn't use the > installer because you weren't in a position to use your entire disks; all > of which is entirely absent in your initial mail. > > Several people have now given you links to various cookbooks for doing > what I understand you want to do, or more precisely, as close as anything > published is likely to be to meeting your exact needs. Pick one and see how > it goes. I'd suggest really good backups first. > > --Jon Radel > jon@radel.com > >
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