Method, system, and computer readable medium for asynchronously processing write operations for a data storage volume having a copy-on-write snapshot
US7979651B1 · kind B1 · utility
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22Claims
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Key dates
| Filing date | Jul 7, 2006 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | May 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system, and computer readable medium for asynchronously processing write operation on a volume having copy-on-write snapshots. In one embodiment, the method comprises the steps of: updating a normal mirror with write data associated with a write operation for the volume; asynchronously copying the write data from an asynchronous mirror to at least one copy-on-write snapshot; and, once the at least one copy-on-write snapshot is updated, updating the asynchronous mirror with the write data from the normal mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.