Method and system for memory-based data caching
US10474588B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2017 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Jan 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to some embodiment, a backup storage system receives a request from a client for reading a data segment associated with a file object stored in a storage system. In response to the request, the system determines whether a cache hit counter associated with the data segment exceeds a cache hit threshold. The system further determines whether the data segment is associated with a file region of the file object that is frequently accessed. The system writes the data segment into a memory responsive to determining that the cache hit counter exceeds the cache hit threshold and the data segment is associated with the frequently accessed file region. Otherwise, the system writes the data segment into a solid state device (SSD) operating as a cache device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.