Corruption on MS SQL Database due to 1 failed disk on RAID 6
Firstly you should change your database page verification setting from tornpage to checksum to have more reliable identification of database corruption.
secondly SQL Server has detected an I/O error - not surprising if an entire disk failed (or was removed while you tested your test db). - Anyway you won't know if the database is corrupt until you complete the recommended action - DBCC CHECKDB