Error detection and recovery tool for logical volume management in a data storage system
US8713356B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | May 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0793
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Errors arising in logical volume partitions are detected and corrected automatically well before the errors cause a failure to access data. A database is created of configuration information about the logical volume partitions defined in physical volume headers, and the database is stored in storage separate from the headers. Thereafter the errors are detected by capturing configuration information about the logical volume partitions from the headers, and comparing the captured configuration information to the configuration information in the database. The errors are automatically corrected in the corrupt headers. If requested, a report is generated of the volumes and disk partitions that are inaccessible or missing or have the wrong size. The configuration check is performed periodically as a background task and during a re-boot after a system crash or interruption of a configuration process or when invoked prior to a recovery install or database restore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.