Information processing apparatus and operation method thereof
US8161008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Sep 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1451
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information processing apparatus includes a remote copying processing part 214 copying, at predetermined time intervals, difference data of a D-VOL 72 onto a different D-VOL 72 via a communication interface; and a failover processing part 215 acquiring the number of other auxiliary volumes 74 provided to be added to the different D-VOL 72 as a new D-VOL 72 when the copying of the difference data of the D-VOL 72 onto the different D-VOL 72 is complete, comparing the number of other auxiliary volumes 74 with the number of auxiliary volumes 74 included in itself, and performing a failover process of switching a function of a copy source of a data copying process by the data copying processing part to a function of a copy destination thereof when the number of other auxiliary volumes 74 is larger than the number of that in itself by a predetermined value or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.