Predictive point-in-time copy for storage systems
US9857996B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2013 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Jun 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2056
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and system are provided for predictive point-in-time copy for storage systems. The method may include: recording a frequency of writes to an area of a storage volume; and prioritizing areas for having point-in-time copies carried out based on the write frequency to an area, wherein areas in the storage volume having a high write frequency are prioritized before areas with a lower write frequency. An area may be of a coarser granularity than a region tracked for the point-in-time copy. The method may include: recording the frequency of writes to an area in a given period; and prioritizing areas by their frequency of writes in the given period immediately prior to the point-in-time copy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.