Disk array system generating a data guarantee code on data transferring
US7293139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2004 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Sep 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/104
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To correctly generate LAs even when out-of-order occurs. In a disk array system according to the present invention, a control unit includes: a host input/output unit that exchanges data and a control signal with a host connected to a disk array system; a disk input/output unit that exchanges data and a control signal with a disk; a cache memory that temporarily stores the data during transfer between the host input/output unit and the disk input/output unit in units of segments that are each formed by a plurality of blocks having a predetermined size; an MPU that controls an operation of the control unit by executing a control program; and a cache controller that controls input/output of the data into/from the cache memory, and the host input/output unit transfers, to the cache controller, transfer information containing the guarantee codes of the first blocks of the segments relating to the data transfer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.