A data storage system and a method of managing data in the storage system. A method of performing a write to a data storage system, including a first storage device and a second storage device, may include writing a first set of header information to a first storage device and a second storage device....http://www.google.com/patents/US6671777?utm_source=gb-gplus-sharePatent US6671777 - Data storage system and method for managing critical data in an N-way mirrored storage device using first and second sequence numbers
