Media based cache for data storage device
US9959052B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2015 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Mar 14, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/462
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Write commands are received for a Data Storage Device (DSD) to store write data in a plurality of corresponding write locations on at least one disk of the DSD. At least a portion of the write data is cached in at least one Media Based Cache (MBC) region of the at least one disk based on a write cache policy for determining which write data is eligible for caching in the at least one MBC region. The at least one MBC region is used to cache data to be stored in other locations on the at least one disk. During an active time period when host commands are performed on the at least one disk, a portion of an I/O bandwidth for performing commands is used to copy the at least a portion of the write data to corresponding write locations of the plurality of corresponding write locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.