Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

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On Wed, Feb 08, 2017 at 07:50:22AM -0500, Austin S. Hemmelgarn wrote:
>  It is exponentially safer in BTRFS
> to run single data single metadata than half raid1 data half raid1 metadata.

  Why?
 
> To convert to profiles _designed_ for a single device and then convert back
> to raid1 when I got another disk.  The issue you've stumbled across is only
> partial motivation for this, the bigger motivation is that running half a 2
> disk array is more risky than running a single disk by itself.

  Again, why?  What's the difference?  What causes increased risk?

-- 
Tomasz Torcz                Only gods can safely risk perfection,
xmpp: zdzichubg@xxxxxxxxx     it's a dangerous thing for a man.  -- Alia

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