Using logical block addresses with generation numbers as data fingerprints to provide cache coherency
US8473690B1 · kind B1 · utility
26Cited by
46References
8Claims
0Family size
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Key dates
| Filing date | Oct 30, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Dec 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/314
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The technique introduced here involves using a block address and a corresponding generation number as a “fingerprint” to uniquely identify a sequence of data within a given storage domain. Each block address has an associated generation number which indicates the number of times that data at that block address has been modified. This technique can be employed, for example, to maintain cache coherency among multiple storage nodes. It can also be employed to avoid sending the data to a network node over a network if it already has the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.