Woke up 3am cause my NAS was beeping, check the status says the volume has crashed, log files indication most likely is bad sector on my 3TB WD. Undaunted I took my external Mybook backup hdd to check what is the lastest backup i did. To my horror I cannot see anything in in it. Further checking now I can confirm my backup HDD has failed as well. Who would have thought to had everything failed at the same time, guess my biggest mistake is I have not check my backup drive for 2 months now. While I can still access my NAS, copying files from it is a pain, It'll take a week to copy everything out provided no more failure while copying. Sorry just need to rant. And maybe grab a Seagate.