Storage system and data migration method for the same
US7757055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2006 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jan 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system are provided that can realize data migration between volumes accessed by a host computer without stopping the host computer accessing the volumes. A host computer 10 is connected to a storage subsystem 14 via paths 54 and 56, and the storage subsystem 14 is connected to a storage subsystem 12 via a path 58 (or paths 58 and 60). While data is being copied from an old volume 62 in the storage subsystem 12 (a migration source) to a new volume 64 in the storage subsystem 14 (a migration destination) via the path 58 (or paths 58 and 60), if a request for I/O processing is sent from the host computer 10, the storage subsystem 14 responds and handles that I/O processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.