Date: Sun, 6 Nov 2022 13:30:46 -0800 From: paul beard <paulbeard@gmail.com> Cc: questions@freebsd.org Subject: Re: Zfs Guide Message-ID: <CAMtcK2q6pbW7FUiO5OWF3Ec6YJ_GiDscNXxkR1CnAu%2BZvYBCdg@mail.gmail.com> In-Reply-To: <805FA79F-8AEE-421E-A56C-BE16209B8CAD@gmail.com> References: <20221106143708.a72fd78c67eb4b055b138449@sohara.org> <805FA79F-8AEE-421E-A56C-BE16209B8CAD@gmail.com>
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--000000000000ca34e605ecd40543 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable As someone who screwed up their root/sole drive not long ago, this ZFS discussion is interesting. The rebuilding process might have been easier or even unnecessary, had I been able to roll back to a snapshot. So even after reading all of this, I have to ask if this is the right call for me. I use Freebsd in a VM, have two disk images already with a job to mirror them as a backup (not gmirror, I didn't know about that when i set this all up). Will zfs allow me to run the services I run now with the same ease (booting into the VM automagically) with the added security of snapshots and redundancy? I guess a peruse of the fine manual is in order=E2=80=A6? On Sun, Nov 6, 2022 at 1:05 PM Joe B <jb1277976@gmail.com> wrote: > Thanks for the reply, > > I found a series online (YouTube) a couple and they go into detail about > Zfs. For now I'm going to create 3 hard disk in virtualbox and practice. > Once I get that down I will then figure out what to do on a single drive > and those benefits > > Thanks > > Joe B > > > On Nov 6, 2022, at 6:37 AM, Steve O'Hara-Smith <steve@sohara.org> wrote= : > > > > =EF=BB=BFOn Sun, 6 Nov 2022 09:26:22 -0500 > > Paul Mather <paul@gromit.dlib.vt.edu> wrote: > > > >>> On Nov 6, 2022, at 3:43 AM, Michael Schuster < > michaelsprivate@gmail.com> > >>> wrote: > >>> > >>> Let me repeat what was written recently (by David Cottlehuber, IIRC): > >>> ZFS-based boot environments work fine on a single disk and (IMO) > >>> justify using ZFS all by themselves. I wouldn't want to be without > them. > >> > >> > >> Although you don't significantly benefit from ZFS' resiliency features > in > >> a single-disk setup (though there is still "copies=3DN":), you do stil= l > >> significantly benefit from the other huge feature of using ZFS: its > > > > You're both quite right I should have said something like "to get > > the full benefits of ZFS you need at least two drives". I have somethin= g > of > > a data security focus :) > > > > -- > > Steve O'Hara-Smith <steve@sohara.org> > > > > --=20 Paul Beard / www.paulbeard.org/ --000000000000ca34e605ecd40543 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">As someone=C2=A0who screwed up their root/sole drive not l= ong ago, this ZFS discussion is interesting. The rebuilding=C2=A0process mi= ght=C2=A0have been easier or even unnecessary, had I been able to roll back= to a snapshot. So even after reading=C2=A0all of this, I have to ask if th= is is the right call for me. I use Freebsd in a VM, have two disk images al= ready with a job to mirror them as a backup =C2=A0(not gmirror, I didn'= t know about that when i set this all up). Will zfs allow me to run the ser= vices I run now with the same ease (booting into the VM automagically) with= the added security of snapshots and redundancy? I guess a peruse of the fi= ne manual is in order=E2=80=A6?=C2=A0<div><br></div></div><br><div class=3D= "gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Nov 6, 2022 at = 1:05 PM Joe B <<a href=3D"mailto:jb1277976@gmail.com">jb1277976@gmail.co= m</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin= :0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-lef= t-color:rgb(204,204,204);padding-left:1ex">Thanks for the reply,<br> <br> I found a series online (YouTube) a couple and they go into detail about Zf= s. For now I'm going to create 3 hard disk in=C2=A0 virtualbox and prac= tice. Once I get that down I will then figure out what to do on a single dr= ive and those benefits <br> <br> Thanks<br> <br> Joe B<br> <br> > On Nov 6, 2022, at 6:37 AM, Steve O'Hara-Smith <<a href=3D"mail= to:steve@sohara.org" target=3D"_blank">steve@sohara.org</a>> wrote:<br> > <br> > =EF=BB=BFOn Sun, 6 Nov 2022 09:26:22 -0500<br> > Paul Mather <<a href=3D"mailto:paul@gromit.dlib.vt.edu" target=3D"_= blank">paul@gromit.dlib.vt.edu</a>> wrote:<br> > <br> >>> On Nov 6, 2022, at 3:43 AM, Michael Schuster <<a href=3D"ma= ilto:michaelsprivate@gmail.com" target=3D"_blank">michaelsprivate@gmail.com= </a>><br> >>> wrote:<br> >>> <br> >>> Let me repeat what was written recently (by David Cottlehuber,= IIRC):<br> >>> ZFS-based boot environments work fine on a single disk and (IM= O)<br> >>> justify using ZFS all by themselves. I wouldn't want to be= without them.<br> >> <br> >> <br> >> Although you don't significantly benefit from ZFS' resilie= ncy features in<br> >> a single-disk setup (though there is still "copies=3DN":= ), you do still<br> >> significantly benefit from the other huge feature of using ZFS: it= s<br> > <br> >=C2=A0 =C2=A0 You're both quite right I should have said something = like "to get<br> > the full benefits of ZFS you need at least two drives". I have so= mething of<br> > a data security focus :)<br> > <br> > -- <br> > Steve O'Hara-Smith <<a href=3D"mailto:steve@sohara.org" target= =3D"_blank">steve@sohara.org</a>><br> > <br> <br> </blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"= class=3D"gmail_signature">Paul Beard / <a href=3D"http://www.paulbeard.org= /" target=3D"_blank">www.paulbeard.org/</a><br></div> --000000000000ca34e605ecd40543--
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