Re: BTFS - Raid1 for System Disk

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On Mon, Nov 2, 2020 at 2:14 PM Jorge Fábregas <jorge.fabregas@xxxxxxxxx> wrote:
>
> On 11/2/20 3:48 PM, Chris Murphy wrote:
> > Short version: If you want unattended degraded RAID boot, use mdadm
> > and put Btrfs on top of it.
>
> Hi Chris,
>
> I get it now.  Thanks. I see it's not that straightforward at this point :(
>
> I guess I'll continue to use ext4 but now I'll consider it over mdadm
> (RAID 1) for my next setup as suggested.  I'll miss the self-healing
> properties of a BTRFS RAID-1 setup but don't want the hassle at this
> point when ext4 has served me well.

You don't have those issues with Btrfs on mdadm raid1. You'll still
get metadata self-healing from DUP metadata profile, and you'll get
error detection for data. That's not something mdadm does on its own.


-- 
Chris Murphy
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