Constrained coding has found widespread use in optical and magnetic data storage devices [9]. Proposals for new storage systems such as holographic storage have caused interest in two-dimensional (2D) and three-dimensional (3D) constrained systems as models of data storage on a surface. One-dimensional constraints were extensively studied and there are several known methodologies for designing ...

This report summarizes current state of the art in tertiary storage systems. We begin with a comprehensive discussion of magnetic tape and optical storage technologies. This is followed by a classiication of commercial products based on their performance characteristics. Our analysis of product data indicates that in contrast to disk technology, tertiary storage products have signiicant variabl...

Photopolymers are very interesting as optically sensitive recording media due to the fact that they are inexpensive, self-processing materials with the ability to capture low-loss, high-fidelity volume recordings of 3D illuminating patterns. We have prepared this paper in part in order to enable the recognition of outstanding issues, which limit in particular the data storage capacity in hologr...

Cloud Computing has become a well-known primitive nowadays; many researchers and companies are embracing this fascinating technology with feverish haste. In the meantime, security and privacy challenges are brought forward while the number of cloud storage user increases expeditiously. In this work, we conduct an in-depth survey on recent research activities of cloud storage security in associa...

Magnetic recording currently is the major data storage technology. Conventional magnetic media implement continuous magnetic layers consisting of microscopic grains. Such media have constraints of thermal instability due to the superparamagnetic effect, which occurs when the magnetic grains become too small. The superparamagnetic effect may set the fundamental limit of about 0.5Tbit/inon achiev...

Data deduplication is a technology that eliminates redundant data to save storage space. Most previous studies on data deduplication target backup storage, where the deduplication ratio and throughput are important. However, data deduplication on primary storage has recently been receiving attention; in this case, I/O latency should be considered equally with the deduplication ratio. Unfortunat...

The working group of the DNAquanet COST Action dealing with data analyses and storage for use metabarcoding approaches in biodiversity assessment, namely Working Group 4, had two main goals. On one hand comparison available analytical pipelines, while keeping track new advances bioinformatics, on other to deal potential issues sharing era big data. Such activities were carried out through discu...

We present an overview of our recent research efforts on read–write volume holographic digital data storage. High areal density (394 bits/square micron) holographic data storage, and a novel system architecture for extending this high density to high capacity are described. We also discuss signal–processing of data pages to compensate for pixel shifts, and two–color gated storage media to provi...