Method of controlling storage device controlling apparatus, and storage device controlling apparatus
US7788457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2006 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Jun 15, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2206/1008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage device controlling apparatus includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving requests to input and output data in files as units from an information processing apparatus and an I/O processor outputting I/O requests corresponding to the requests to input and output data to a storage device; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors. In the storage device controlling apparatus, the disk controller performs a replication management processing whereby data is also written into a second logical volume to store a copy of the data in the second logical volume, when the data is written into a first logical volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.