Re: "not enough space" with "data raid0"

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On Sat, Mar 17, 2012 at 03:24:00PM +0100, Helmut Hullen wrote:
> Hallo, Hugo,
> 
> Du meintest am 17.03.12:
> 
> >> What's the 'solution' though to Hugo's situation?
> >> By 'solution' I mean the highest-utility way of dealing with unequal
> >> devices problem in a two or more -up setting.
> 
> >    Use mkfs.btrfs -d single, as I said in another part of this
> > thread.
> 
> Does "single" allow adding new (bigger) disks and removing old (smaller)  
> disks?

   Yes. "single" is effectively "RAID linear" -- just adding the disks
together, effectively linearly(*). It's called "single" because it's
single (i.e. no) redundancy.

   Hugo.

(*) actually the allocator will kind of "stripe" the data in 1GiB-wide
stripes, but that's incidental really.

-- 
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
  PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
   --- A diverse working environment:  Di longer you vork here, di ---   
                             verse it gets.                              

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