Date: Wed, 11 Jul 2012 07:16:45 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Kaya Saman <kayasaman@gmail.com> Cc: miles kuo <miles.kuo@gmail.com>, freebsd-questions@freebsd.org Subject: Re: How to mirror the FreeBSD OS on two disks Message-ID: <alpine.BSF.2.00.1207110702490.76348@wonkity.com> In-Reply-To: <CAPj0R5L1=HaY1Bf-51FB59J6Q4pX1s4yDbzXoAAWRwei6yqt-A@mail.gmail.com> References: <CAGpP9XOvVor7HmxDP7SFhc7AFnpSf-s%2BgXbkJsguiAo=xNvnVA@mail.gmail.com> <CAPj0R5L1=HaY1Bf-51FB59J6Q4pX1s4yDbzXoAAWRwei6yqt-A@mail.gmail.com>
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On Wed, 11 Jul 2012, Kaya Saman wrote: > On Wed, Jul 11, 2012 at 10:18 AM, miles kuo <miles.kuo@gmail.com> wrote: >> Hi all, >> >> I have two SAS disks for the FreeBSD install. I want to install the freeBSD >> on one disk and mirror to another disk. Just like the AIX Mirror. >> >> Any changes will sync between the two disks. And if one disk crashed or >> disconnected, the OS could continue running on another disk. >> >> Does the FreeBSD support the disk mirror? How to implement it? > > I am no expert at this however a quick Google search comes up with: > > http://www.freebsd.org/doc/handbook/geom-mirror.html The procedure shown there produces a mirror that will not boot on FreeBSD 9. The release notes mention a workaround: http://www.freebsd.org/releases/9.0R/relnotes-detailed.html#AEN1277 (There's work under way to fix that chapter.)
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