A method for a data storage system is disclosed. The method includes providing a memory cell array, and providing N blocks in a first region of the memory cell array, N being an integer greater than 1. Each cell of each block of the N blocks is configured to store no more than N−1 bits of data. The method further includes providing a block in the second region of the memory cell array. Each cell of the block in the second region is configured to store N bits of data. The method additionally includes configuring the data storage system so that when data is programmed to the memory cell array, N pages of the data are initially stored in N respective blocks of the first region of the memory cell array, and then the N pages of the data are stored in the block of the second region.