Mass storage system and method with emulation and management priorities
US7873790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2007 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Sep 15, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention concerns a storage method and system (1) comprising processing means (11) and storage resources (20, 100) containing firstly storage means (20) including at least one physical library (P201 to P20n) and secondly memory means (100) called a cache (100), in which the processing means (11) of the storage system (1), vis-à-vis the computer platforms (101 to 10n), emulate at least one virtual library (V201 to V20n) from at least one physical library (P201 to P20n) which the storage system has under its control, characterized in that the processing means (11) of the storage system (1) comprise a management module (30) responsible for emulation and managing priorities over time for accesses to the storage resources (20, 100) using the results of calculations of at least one cache activity index per determined periods of time, and of at least one cache occupancy rate at a given time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.