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Re: LVM RAID vs LVM over MD

From Nicholas Geovanis <nickgeovanis@gmail.com>
Newsgroups linux.debian.user
Subject Re: LVM RAID vs LVM over MD
Date 2016-12-05 20:20 +0100
Message-ID <sL6XU-81-23@gated-at.bofh.it> (permalink)
References <sKnR7-5gJ-1@gated-at.bofh.it> <sKYGZ-3jJ-3@gated-at.bofh.it>
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I'd like to make sure I'm taking away the right thing from this
conversation.
It seems we have high-level recommendations _not_ to use LVM RAID1.
Not just over MD, simply don't use it at all. Do I get that right?

On Mon, Dec 5, 2016 at 4:25 AM, Jonathan Dowland <jmtd@debian.org> wrote:

> On Sat, Dec 03, 2016 at 07:39:37PM +0100, Kamil Jońca wrote:
> > So far I used lvm with raid1 device as PV.
> >
> > Recently I have to extend my VG
> > (https://lists.debian.org/debian-user/2016/11/msg00909.html)
> >
> > and I read some about lvm.
> > If I understand correctly, LVM have builtin RAID1 functionality.
> > And I wonder about migrating
> > lvm over md --> (lvm with raid1) over physical hard drive partitions.
> >
> >
> > Any cons?
>
> MD is older, has had more development and is generally considered to be
> more robust. I would always choose to do RAID with MD, directly on the
> disks, and put LVM on top of the MD virtual block devices.
>
> --
> Jonathan Dowland
> Please do not CC me, I am subscribed to the list.
>

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Thread

LVM RAID vs LVM over MD kjonca@poczta.onet.pl (Kamil Jońca) - 2016-12-03 20:10 +0100
  Re: LVM RAID vs LVM over MD Henrique de Moraes Holschuh <hmh@debian.org> - 2016-12-03 22:50 +0100
    Re: LVM RAID vs LVM over MD kjonca@poczta.onet.pl (Kamil Jońca) - 2016-12-04 08:20 +0100
  Re: LVM RAID vs LVM over MD Sven Hartge <sven@svenhartge.de> - 2016-12-03 23:20 +0100
  Re: LVM RAID vs LVM over MD Roman Tsisyk <roman@tsisyk.com> - 2016-12-04 07:40 +0100
  Re: LVM RAID vs LVM over MD Jonathan Dowland <jmtd@debian.org> - 2016-12-05 11:30 +0100
    Re: LVM RAID vs LVM over MD Nicholas Geovanis <nickgeovanis@gmail.com> - 2016-12-05 20:20 +0100
      Re: LVM RAID vs LVM over MD Dan Ritter <dsr@randomstring.org> - 2016-12-05 20:40 +0100
        Re: LVM RAID vs LVM over MD Sven Hartge <sven@svenhartge.de> - 2016-12-05 21:00 +0100
          Re: LVM RAID vs LVM over MD Roman Tsisyk <roman@tsisyk.com> - 2016-12-05 21:10 +0100
            Re: LVM RAID vs LVM over MD Sven Hartge <sven@svenhartge.de> - 2016-12-05 21:40 +0100
      Re: LVM RAID vs LVM over MD Sven Hartge <sven@svenhartge.de> - 2016-12-05 20:50 +0100
      Re: LVM RAID vs LVM over MD Igor Cicimov <icicimov@gmail.com> - 2016-12-06 01:00 +0100
        Re: LVM RAID vs LVM over MD Jonathan Dowland <jmtd@debian.org> - 2016-12-12 12:30 +0100
          Re: LVM RAID vs LVM over MD Igor Cicimov <icicimov@gmail.com> - 2016-12-13 09:50 +0100

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