Erasure-coding extents in an append-only storage system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9619322
APP PUB NO 20160139980A1
SERIAL NO

14540610

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A data storage system stores sets of data blocks in extents located on storage devices. During operation, the system performs an erasure-coding operation by obtaining a set of source extents, wherein each source extent is stored on a different machine in the data storage system. The system also selects a set of destination machines for storing destination extents, wherein each destination extent is stored on a different destination machine. Next, the system performs the erasure-coding operation by retrieving data from the set of source extents, performing the erasure-coding operation on the retrieved data to produce erasure-coded data, and then writing the erasure-coded data to the set of destination extents on the set of destination machines. Finally, after the erasure-coding operation is complete, the system commits results of the erasure-coding operation to enable the set of destination extents to be accessed in place of the set of source extents.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • DROPBOX, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cowling, James San Francisco, US 15 198
Mallipeddi, Venkata Harish San Francisco, US 6 100
Modzelewski, Kevin P San Francisco, US 3 12

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Oct 11, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 11, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00