Heterogeneous storage array optimization through eviction
US8161251B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jun 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage system can comprise storage devices having storage media with differing characteristics. An eviction handler can receive information regarding the state of storage media or of data stored thereon, as well as information regarding application or operating system usage, or expected usage, of data, or information regarding policy, including user-selected policy. Such information can be utilized by the eviction handler to optimize the use of the storage system by evicting data from storage media, including evicting data in order to perform maintenance on, or replace, such storage media, and evicting data to make room for other data, such as data copied to such storage media to facilitate pre-fetching or implement policy. The eviction handler can be implemented by any one or more of processes executing on a computing device, control circuitry of any one or more of the storage devices, or intermediate storage-centric devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.