Returning coherent data in response to a failure of a storage device when a single input/output request spans two storage devices
US9690503B2 · kind B2 · utility
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2References
21Claims
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Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jun 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/1088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A controller maintains exposed and unexposed locations of a first storage device and a second storage device. In response to receiving a request a perform a write operation to write data in locations that span the first storage device and the second storage device, the controller atomically writes an entirety of the data in the unexposed locations of the first storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.