btrfs by itself cant protect u if there is not a hdd parity for it. so to make sure we are on the same page is unraid going to support 30+ hdds and/or multiple arrays?
so it ended up being a windows issue (most likely some kind of driver interference). after uninstalling a couple of sw that i had some suspicion, running a "windows repair tool" issue went away but after notice some performance loss i decided to go back to using two boxes. thank u to all of those that provided support and my apologies for pming some of you and getting frustrated for an "end user error" situation.