Patent ID: 8812813

Claim:
A storage apparatus, comprising: a first storage unit, comprising: a common data section that stores common data; a first data section that stores first data; and a second data section that stores second data; a second storage unit; and a controller that transfers the common data, the first data, and the second data from the first storage unit to the second storage unit, wherein the first storage unit stores a single copy of the common data, wherein the common data and the first data are stored in the second storage unit to form a first memory bank, and the common data and the second data are stored in the second storage unit to form a second memory bank, and wherein the controller reads the common data from the first storage unit and stores the common data into the second storage unit to form the first memory bank with the first data read from the first storage unit, and the controller replicates a copy of the common data by directly using the common data stored in the second storage unit to form the second memory bank with the second data read from the first storage unit.