Where I work we have a series of virtual servers running on 4 ESX servers (v3.5). The servers were left unattended for 5 days and when we (the server administrators) came back in today, we noticed that one of the servers was no longer in our data center. We can still access the 3 VMs on the server, but have shut 2 down to save resources while we figure out how we are going to merge the other onto our other ESX servers. The remaining one is our forest primary DC.
While we were investigating the issue, we found that there was a bad sector on sd(8,2). What we are trying to figure out is if sd(8,2) is one of the HDDs or if it is related to our RAID controller.