Deduplication memory method in the memory module, configure each of the plurality of hash tables with corresponding to a hash function, each of the plurality of hash tables is comprised of a physical hash buckets, each physical bucket-way (Ways) and identifying a hash table that is composed of a plurality of hash tables, to store data, each of the plurality of virtual bucket is configured to be part of the physical bucket at least one other virtual bucket of the plurality of virtual bucket the step of identifying a plurality of virtual bucket, sharing of the physical bucket, comprising the steps of hashing the data line in accordance with the hash function of the hash function to generate a hash value, wherein the physical physical intent of the bucket determining a bucket has the free space for the data block in response to the hash value, and wherein the physical Physical buckets of adjacent positions of the bucket are as physical bucket with the mean and the same as the one of said virtual bucket, that one of the physical bucket of said adjacent position is having the intended physical bucket free space when determining a has the free space for the data block.