Amplidata N.v.

Western Digital Technologies, Inc.

Wouter Van Eetvelde

Frederik De Schrijver

Wim De Wispelaere

Bastiaan Stougie

Romain Raymond Agnes Slootmaekers

Joost Yervante Damad

Bart De Vylder

Kristof Mark Guy De Spiegeleer

Stefaan Vervaet

A method and computer device for storage and retrieval of a data object on a storage medium. The method includes steps of disassembling the data object into a predetermined number of redundant sub blocks, storing the redundant sub blocks on the storage medium, retrieving at least a predetermined multiple of a minimal spreading requirement of the redundant sub blocks from the storage medium, and assembling the data object from any combination of a particular number of the redundant sub blocks, the particular number corresponding to a predetermined multiple of a minimal spreading requirement. The computer device includes modules for performing the steps.

Object storage system for an unreliable storage medium

A distributed object storage system comprises an encoding module configured to calculate for a plurality of predetermined values of the spreading requirement the cumulative size of the sub fragment files when stored on the file system with the predetermined block size; and select as a spreading requirement from said plurality of predetermined values a calculated value that is equal to one of said predetermined values for which the cumulative size is minimal.

Distributed object storage system comprising performance optimizations

A distributed object storage system includes several performance optimizations with respect to storing very small data objects, very large data objects and CRC calculations.

The invention concerns a distributed object storage system () that comprises a spreading module () which makes a selection of a number of storage elements () being larger or equal to a desired spreading width by means of a spreading policy that comprises rules for selecting storage elements () in function of a first hierarchy level identifier () and/or a second hierarchy level identifier ().

Hierarchical, distributed object storage system

The invention concerns a distributed object storage system () comprising a maintenance agent () instructing an encoding module () to disassemble a repair data object into a specific number of repair sub blocks, this specific number being equal to or greater than said number of missing sub blocks and less then the predetermined number of sub blocks during a regular storage operation.

Growing community of inventors

Sint-Amandsberg, Belgium

Wouter Van Eetvelde