1. A method for assessing health of a memory in a storage module, wherein the memory stores data encoded by an Error Correcting Code (ECC), the method comprising: determining cell error rate statistics for a subset of memory cells; and determining an error probability for the entire memory from the cell error rate statistics for the subset of memory cells by: estimating cell error rate parameters of a probability distribution function by fitting the determined cell error rate statistics for the subset of memory cells with a parametric statistical model of errors across the entire memory; and determining an output of the probability distribution function using the estimated cell error rate parameters as an input.