Autonomic hardware-level storage device data integrity checking
US7600051B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2004 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Mar 13, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1833
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for autonomically monitoring data integrity during logical and physical storage and retrieval of data by a storage device. In one embodiment, the method of the present invention includes scheduling data integrity checking in accordance with an operative input/output (I/O) state of the storage device. The scheduling preferably includes first retrieving an I/O command, such as a read or write command, from a disk interface controller and determining whether or not the I/O command has been pre-marked for data checking. In response to the I/O command not being marked for prescribed data checking, a further determination is made of whether or not data integrity checking is required in association with the object I/O command as specified by scheduler rules. Responsive to determining that a data integrity check is required in association with the I/O command, the I/O command is marked as requiring an associated data integrity check.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.