Method, apparatus and program storage device for performing fault tolerant code upgrade on a fault tolerant system by determining when functional code reaches a desired state before resuming an upgrade
US7685461B2 · kind B2 · utility
10Cited by
14References
20Claims
0Family size
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Key dates
| Filing date | Dec 20, 2006 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Mar 1, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1433
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and program storage device for performing fault tolerant code upgrade on a fault tolerant system by determining when functional code reaches a desired state before resuming an upgrade. A concurrent code-load to a plurality of storage controllers of a storage system is initiated. A role transition is detected. The storage system determines when the storage system returns to a desired state. The code-load is resumed when the storage system returns to the desired state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.