Policy and heuristic based conversion of write-optimized virtual disk format into read-optimized virtual disk format
US10268411B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Aug 17, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0661
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of converting a data format in a storage system is provided. The method includes identifying a condition for when to make a data conversion from a write-optimized virtual disk format to a read-optimized virtual disk format; and locating, in response to the identified condition, a version of data. The method may include moving the version of data to a thin-provisioned format in-place virtual disk and detecting a set of overwrites from a remaining set of versions of the data, including blocks of data having been previously overwritten. The method may further include compacting each block within the set of overwrites to create a contiguous block such that an associated physical memory space is reclaimed, wherein the read-optimized virtual disk format of the data includes the thin-provisioned format in-place virtual disk and the contiguous block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.