On Wed, Jun 20, 2012 at 06:35:30PM -0600, Marios Titas wrote: > On Wed, Jun 20, 2012 at 12:27 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote: > > Yet another boot loader support request. > > > > Right now btrfs' definition of "RAID-1" with more than two devices is a > > bit unorthodox: it stores on any two drives. "True RAID-1" would > > instead store N copies on each of N devices, the same way an actual > > RAID-1 would operate with an arbitrary number of devices. > > > > This means that a bootloader can consider a single device in isolation: > > if the firmware gives access only to a single device, it can be booted. > > Since /boot is usually a very small amount of data, this is a very > > reasonable tradeoff. > > +1 > > In fact, the current RAID-1 should not have been called RAID-1 at all, > it is confusing. With the raid5/6 code, I'm changing raid1 (and raid10) to have a configurable number of copies. So, you'll be able to have N copies on M drives, where N <= M. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
