Method and device for acquiring snapshots and computer system with snapshot acquiring function
US7111026B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2004 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Jun 30, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99954
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To eliminate unnecessary generational management, a device to be snapshot and a snapshot control device capable of controlling snapshot commands are connected to a storage system connected to a server provided with a snapshot operating section. The storage system has a differential data storage area for the purpose of generational management of differential data in the device to be snapshot. A snapshot command control section carries out command processing upon receiving snapshot control command issue requests from the server. A designated snapshot update volume managing section manages the update differential volume for snapshot processing, compares a previously designated update volume and an actual update volume, and implements processing for provisional generational management of the update differential in accordance with the designated update volume. A designated snapshot volume reporting section reports management status and processing results to the server in accordance with management of the update differential volume and generational management.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.