nowwhat
15/01/2016, 08h39

Yo have a Microsoft OS ?

Your image show memory testing.
Disk testing would be more appropriate.
Normally, a KS has only one drive.
Drives do die, nothing is more normal as that.
Data loss should be a small amount (the most recent data) because you should know by now that valuable data should be backed up ...
What about accessing your your server in rescue mode using SSH, and launch a smartcl ?!!