System and method for updating the firmware of a device in a storage network
US7558915B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2005 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Mar 20, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method is disclosed for managing access command transmitted to a storage controller during the period that a device coupled to the storage controller is undergoing a firmware update. The storage controller manages access commands directed to the storage controller so that the access command may be managed in a manner that does not disrupt the firmware update processor or the completion of the access command itself. The storage controller enters a guard mode in which the firmware of the storage controller intercepts commands directed to the device undergoing a firmware update. Depending on the characteristics of the access command, the data of the command may be generated from other drives in a redundant drive array or the command may be saved to a cache or journal for later processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.