Computer system and a method of replication
US6976140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2002 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Jan 6, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2206/1012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a cluster-structured disk subsystem, when creating a volume for an online backup separately from a volume for a normal I/O, it is desirable to be able to achieve such a creation for any volume under subsystem. Further, with an increase in the capacity of the subsystem, it becomes more difficult for a user to determine where to place a volume to which data is to be copied. Thus, a cluster-structured storage system is provided in which it is possible to reference/renew snapshot control information in shared memory of other clusters and achieve a snapshot between clusters via an inter-cluster connecting mechanism. In this system, control is performed inside/outside the cluster, and a control is performed inside/outside the cluster, and a volume to which data is to be copied is suggested to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.