Systems and methods of tiered caching
US8327076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2009 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | May 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/313
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosure is related to data storage systems having multiple cache and to management of cache activity in data storage systems having multiple cache. In a particular embodiment, a data storage device includes a volatile memory having a first read cache and a first write cache, a non-volatile memory having a second read cache and a second write cache and a controller coupled to the volatile memory and the non-volatile memory. The memory can be configured to selectively transfer read data from the first read cache to the second read cache based on a least recently used indicator of the read data and selectively transfer write data from the first write cache to the second write cache based on a least recently written indicator of the write data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.