Backlogging I/O metadata utilizing counters to monitor write acknowledgements and no acknowledgements
US9910621B1 · kind B1 · utility
37Cited by
213References
13Claims
0Family size
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Key dates
| Filing date | Sep 29, 2014 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Aug 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/855
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one aspect, a method includes receiving an I/O, incrementing a first counter in an active data structure in a backlog at a splitter after receiving the I/O, storing I/O metadata of the I/O in the active data structure, incrementing a second counter in the active data structure or a passive data structure in the backlog if the I/O was written to a storage array and received by the data protection appliance and incrementing a third counter in the active data structure or the passive data structure if either the I/O was not written to a storage array or not received by the data protection appliance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.