A storage system is described including a two dimensional array of disk drives having multiple logical rows of drives and multiple logical columns of drives, and at least one drive array controller configured to store data in stripes (e.g., across the logical rows). A given drive array controller calculates...http://www.google.de/patents/US6675318?utm_source=gb-gplus-sharePatent US6675318 - Two-dimensional storage array with prompt parity in one dimension and delayed parity in a second dimension
