[blue68f100]

Yes, there is a way to rebuild the array. But if you get the syntax wrong all is lost. The reason I recommend booting up from a single drive and confirm that ID is 10000. If so it is the first boot device. When you break the array to single HD's NO data is lost, provided the good drive is Master (10000), co de config individual dev 50000. Now you can remove the drive in question and replace. Then from the gui you can build the raid1 array again.

The reset to factory will do nothing for you but make the process more complicated. Does not hurt but does nothing in helping you clear your problem. The factory reset is usefull if you are getting panic alarms.

I think the "info devices" cmd will give you drive info. it's been quite a whils since I've messed with the SnapOS hardware.