Grid storage system and method of operating thereof
US8078906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2010 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Feb 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/466
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is provided a storage system comprising a plurality of disk units adapted to store data at respective ranges of logical block addresses (LBAs), said addresses constituting an entire address space, and a storage control grid operatively connected to the plurality of disk units and comprising a plurality of data servers, each server comprising operatively coupled cache memory and non-volatile memory. The method of operating the storage system comprises: a) configuring a first server among said plurality of data servers to have a primary responsibility for handling requests directed to a certain range of LBAs; b) continuously obtaining by the first server, information indicative of configuration and/or changes thereof related to said certain data range, thus giving rise to configuration metadata; c) saving said configuration metadata and/or derivatives thereof at one or more disk units among said plurality of disk units in accordance with a predefined criterion; d) continuously saving in cache memory of the first server said configuration metadata obtained between said savings at disk units, thus giving rise to recent configuration changes metadata; e) destaging the recent confi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.