Mybook Studio suddenly can't access on my IMAC

I have been using a mybook studio live on my imac for a while now, it’s almost filled, last night I suddenly couldn’t see the drive on my finder all I see now is a SMARTWARE icon, I tried restarting so many times no luck, I installed the SMARTWARE, no I can see that the files are still there but I can’t access or backup to another drive.

In short; Mybook is replaced by smartware in my finder and I can’t access the files in it.

Please help!

Hi, check if you are using password protection for the my book. You can also open the disk utility window and verify if it’s recognized there. 

http://wdc.custhelp.com/app/answers/detail/a_id/866/session/L3RpbWUvMTM1NDczODUwOS9zaWQvSWxua0lfY2w%3D