Performing a non-disruptive software upgrade on physical storage processors having access to virtual storage processors
US9092290B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Sep 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/65
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A non-disruptive upgrade technique involves, with (i) a first SP using first virtual SPs (VSPs) defining first environments for first host file systems, (ii) a second SP using second VSPs defining second environments for second host file systems, and (iii) an initial software version installed on each SP, processing host I/Os on the host file systems by the SPs. The technique further involves moving the first VSPs from the first SP to the second SP to provision the second SP to process host I/Os concurrently on the first and second host file systems using the first and second VSPs. The technique further involves, after moving the first VSPs from the first SP to the second SP and while the second SP processes host I/Os concurrently on the first and second host file systems using the first and second VSPs, installing a new backwards compatible software version on the first SP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.