On Friday 14 March 2014 06:42:27 Duncan wrote: > N-way-mirroring is actually my most hotly anticipated feature for a > different reason[2], but for you it would work like this: > > 1) Setup the 3-way (or 4-way if preferred) mirroring and balance to > ensured copies of all data on all devices. > > 2) Optionally scrub to ensure the integrity of all copies. > > 3) Disconnect the backup device(s). (Don't btrfs device delete, this > would remove the copy. Just disconnect.) > > 4) Store the backups. > > 5) Periodically get them out and reconnect. > > 6) Rebalance to update. (Since the devices remain members of the > mirror, simply outdated, the balance should only update, not rewrite > the entire thing.) > > 7) Optionally scrub to verify. > > 8) Repeat steps 3-7 as necessary.
Judging from your description, N-way mirroring is (going to be) exactly what I was hoping for. Michael -- Michael Schuerig mailto:mich...@schuerig.de http://www.schuerig.de/michael/ -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
