On 01/22/2011 02:55 PM, Hubert Kario wrote:
It looks like ZFS, Btrfs, and LVM should work in similar manners, but
the overloaded terminology (pool, volume, sub-volume, filesystem are
different in all three) and new terminology that's only in Btrfs is
confusing.
With btrfs you need to have *a* filesystem, once you have it, you can add and
remove disks/partitions from it, no need to use 'mkfs.btrfs', just 'btrfs'.
That's just a design decision, right? There's no need for a "default" or
"root" subvolume.
It should be rather easy to change btrfs so that you first have to
create a "storage pool" which combines disks for btrfs, and on top of
that you can create "filesystems" which are just subvolumes.
The creation of a "storage pool" could be very similar to the current
mkfs, just without the creation of a root subvolume.
A new, simpler mkfs would then just create a subvolume on top of the
"storage pool" that can be mounted.
Regards,
Kaspar
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