Redirecting host IO's at destination during replication
US9916202B1 · kind B1 · utility
8Cited by
8References
12Claims
0Family size
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Key dates
| Filing date | Mar 11, 2015 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Oct 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/855
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for providing access to a data object serving as a target of snapshot-shipping replication includes taking a system snap of the data object after completion of each of multiple snapshot-shipping updates. In response to a data storage system receiving an IO (input/output) request to read and/or write to the data object, a data storage system redirects the IO request to a previously generated system snap, so that the data storage system performs the operation specified in the IO request on the system snap rather than of the data object itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.