Microsoft Technology Licensing, LLC

Andromachi Chatzieleftheriou

Richard John Black

Austin N Donnelly

Antony Ian Taylor Rowstron

Aaron William Ogus

Andreas Georgiou

Reinhard Sebastian Bernhard Nowozin

Benn Charles Thomsen

Alexander Lloyd Gaunt

Ioan Alexandru Stefanovici

Ariel Gomez Diaz

Rokas Drevinskas

David Lara Saucedo

James Hilton Clegg

Patrick Neil Anderson

Serguei Anatolievitch Legtchenko

Douglas Wayne Phillips

Hugh David Paul Williams

John Christopher Dainty

Raluca Andreea Diaconu

Mengyang Yang

Christos Gkantsidis

István Haller

A method of reading from a storage medium to recover a group of information sectors, each comprising a respective information payload. The medium stores redundancy data comprising a plurality of separate redundancy codes for the group, each code being a linear sum of terms, each term in the sum being the information payload from a different respective one of the information sectors in the group weighted by a respective coefficient of a set of coefficients for the redundancy code. The method comprises, after the redundancy data has already been stored on the medium: identifying a set of k' information sectors to be recovered; selecting k&#x2032; of the redundancy codes; determining a square matrix E of the k&#x2032; information sectors by the k&#x2032; sets of coefficients of the selected codes; determining a matrix D being a matrix inverse of E; and recovering the k&#x2032; information payloads from the inverse matrix D.

Encoding for data recovery in storage systems

A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.

Disaggregated data storage and retrieval system

Growing community of inventors

Cambridge, United Kingdom

Andromachi Chatzieleftheriou