2057
Server Administrator
Virtual disk degraded: Virtual Disk 0 (Virtual Disk 0) Controller 0 (PERC 5/i Integrated)
A virtual disk that is configured for redundancy (by using a fault tolerant RAID such as RAID 1, RAID 5, ...) has been degraded, meaning it is not fault tolerant anymore.This is usually because a physical hard disk failed. Look for other events in the event log with the "Server Administrator" event source.