On Mon, Mar 19, 2012 at 03:14:19PM +0000, Alex wrote:

quoted

   I'm working on a comprehensive explanation of the limits on btrfs's
space usage, and a little JavaScript tool to help plan/explain disk
usage.

Thank you Hugo.

Given the kernel 3.3 release yesterday [1] we've gained the ability to restripe
to different raid levels after the fact. So I guess I don't have too much to
worry about with decent backups.

   Yes, you do. RAID is not a backup: What happens if you accidentally
write zeroes over all your superblocks? Or rm -rf /home? RAID will not
help you here.

   Hugo.

-- 
=== 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
   --- In the future, terrorists won't be carrying their ID cards. ---   
                   They'll be carrying yours. -- Henry                   
                         Porter,  Suspect Nation