Storage systems are designed and optimized relying on wisdom derived from analysis studies of file-system and block-level workloads. However, while SSDs are becoming a dominant building block in many storage systems, their design continues to build on knowledge derived from analysis targeted at hard disk optimization. Though still valuable, it does not cover important aspects relevant for SSD p...

ABSTRACT The paper presents research on modelling of HSM machine tool feed drive with use of Finite Element Method. The problems affecting generally considered machining accuracy were analysed, i.e. the problem of thermal displacements and the problem of displacements related to the feed drive stiffness. The research focused on possibility of simplifying (decreasing complexity) of the FEM model...

NAND flash memories represent a key storage technology for solid-state storage systems. However, they su↵er from serious reliability and endurance issues that must be mitigated by the use of proper error correction codes. This paper proposes the design and implementation of an optimized BoseChaudhuri-Hocquenghem hardware codec core able to adapt its correction capability in a range of predefine...

Over the past decade, new solid state storage technologies, with flash being the most mature one, have become increasingly popular. Such technologies store data durably, and can alleviate many handicaps of hard disk drives (HDDs). Nonetheless, they have very different characteristics compared to HDDs, making it challenging to integrate such technologies into data intensive systems, such as data...

This study looked for remnant data on enterprise level hard drives that were purchased through auctions. The drives were analysed for information, be it topical or formatted. In the event that drives were formatted, forensic tools were used to recover this data. This years study revealed a high level of not simply un-erased drives, but drives which contained information that related to critical...

In many learning problems, we attempt to infer global structure in the interest of making local predictions. For example, we might try to infer the skills of the competitors in a tournament in order to predict who will win a match, or we might try to predict characteristics of users and films in order to predict which users will like which films. In even relatively simple settings of this type,...

Hard Drive Command Capture and Sequential Stream Detection

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