most likely the raid controller was made active, but the raid drives
themselves were never set up, so all data was written to drive 1, just a guess

"Douglashen" wrote:

> My Dell came with Raid1 implemented on it. I have never paid much attention
> to it as I use an offsite backup. Recently I looked at Drive 2 to see what
> was on it and discovered that it was empty. Disk properties show almost no
> usage at all where drive 1 is almost half full. This uses an Intel Raid
> drive and a system check says the controller is working normally. What's
> going on?