Method and system for metadata churn absorption
US10489301B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Jul 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to some embodiment, a backup storage system determines whether one or more data segments associated with a file object have been updated, where the data segment(s) are stored in a first segment level in a multi-level hierarchy. For each updated data segment, the system applies a reference-based hierarchical data structure to track metadata associated with the updated data segment, where the metadata is stored in a second segment level in the multi-level hierarchy. The system determines whether the reference-based hierarchical data structure has reached a specific size. The system writes the metadata associated with the updated data segment(s) to a solid state device (SSD) operating as a memory cache device responsive to determining that the reference-based hierarchical data structure has reached the specific size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.