Today I have looked on my homeserver and a single folder holding all my photos has gone from one of my shares on my homeserver, fortunately everything is backed up, but what it the best way to see what has happened.
I have run CheckDisk, rebooted my machine and run recuva, none of which shows any problems or can find any files.
Also WHS and explorer is still saying the folder contains 70gb of data but no files are shown