Reconstructing data stored across archival data storage devices
US9430321B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Aug 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1095
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for operating a storage system are disclosed. A read request with an object identifier for a data object is received. A synchronous group of data storage devices across a plurality of enclosures is identified. The synchronous group is associated with the object identifier. A request is sent to the plurality of enclosures to synchronously activate the data storage devices in the synchronous group. After sending the request, data fragments associated with the object identifier are retrieved from the synchronous group of data storage devices. The data fragments are erasure decoded into a contiguous data range to reconstruct the data object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.