SSD caching system for hybrid storage
US10552329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Aug 31, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A SSD caching system for hybrid storages is disclosed. The caching system for hybrid storages includes: a Solid State Drive (SSD) for storing cached data, separated into a Repeated Pattern Cache (RPC) area and a Dynamical Replaceable Cache (DRC) area; and a caching managing module, including: an Input/output (I/O) profiling unit, for detecting I/O requests for accesses of blocks in a Hard Disk Drive (HDD) during a number of continuously detecting time intervals, and storing first data corresponding to first blocks being repeatedly accessed at least twice in individual continuously detecting time intervals to the RPC area sequentially; and a hot data searching unit, for detecting I/O requests for accesses of a HDD during a independently detecting time interval, and storing second data corresponding to second blocks being accessed at least twice in the independently detecting time interval to the DRC area sequentially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.