From the FAQ on the blog post:
Can I move a storage pool from one PC to another, once created? For
example, if I have a cage with 6 removable drives?
Yes. Just connect the physical disks comprising the pool to the new
Say I have 3 external enclosures and I remove them one at a time. I
then plug them into another Windows 8 PC in reverse order. Will the
new PC think I have a broken pool or will it eventually catch up? What
if I never plug in one of the enclosures?
You can plug enclosures back in in any order. When Storage Spaces
detects a sufficient number of disks for quorum, it activates the pool
and contained spaces. You can plug in more enclosures later. If the
data on any disks becomes out of sync, Storage Spaces will
automatically sync them. Even if you never plug in some enclosures, as
long as Storage Spaces detects the minimum number of disks needed, you
can continue working with your data. Both via PowerShell and via
Control Panel, Storage Spaces informs you that a few physical disks
are missing, thereby encouraging you to plug them back in.
The above suggests that the storage pool stores state information on the disks themselves given you can move them the pool to another PC.