Data storage system including backup memory and managing method thereof
US8898392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Sep 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/262
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention discloses a data storage system and managing method thereof. The data storage system according to the invention includes N storage devices, a backup memory and a controller where N is a natural number. Each storage device has a respective write cache. Once the data storage system suffers from power failure, the backup memory still reserves data stored therein. The controller receives data transmitted from an application I/O request unit, executes a predetermined operation for the received data to generate data to be written, transmits the data to be written to the write caches of the storage devices, duplicates the data to be written into the backup memory, and labels the duplicated data in the backup memory as being valid in response to a writing confirm message sent from the storage devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.