High capacity DNA data storage with variable-length Oligonucleotides using repeat accumulate code and hybrid mapping

摘要

It has been predicted that the amount of data around the world will rise to 44 zettabytes by 2020 with 2.5 exabytes of daily data production [ ]. With this ever-increasing information in the digital world, the effective way to store enormous data with high reliability, capacity and durability has been much discussed. Traditional digital storage systems (e.g., CD, DVD, flash drivers, etc.) could provide a density of around 201 GB/in , but require a large physical space to store data with magnitude of zettabytes [ ]. Another desirable characteristic of data storage is the long preservation duration. However, tapes, disks and other traditional mediums are only capable of storing data in tens of years due to high tendency to decay [ ]. Deoxyribonucleic acid (DNA) has recently attracted much attention as its inherent features, such as high physical density and long durability, significantly accommodate the requirements of large-sized long-term storage [ ].