is there any intent to readd the option for a disked MD rather than just a diskless, since this was removed in 0710?
Also, I understand that a diskless MD will now use any local HDD for swap space. Does this happen automatically? Do you have to format/partition it in any specific way to allow it to detect and use the drive? And does it attempt to detect them on each boot, or if you add a HDD later, do you then have to trigger it to detect it again?