Systems and methods for segmenting and protecting a storage subsystem
US7912991B1 · kind B1 · utility
164Cited by
21References
20Claims
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Key dates
| Filing date | Mar 23, 2009 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Jul 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2149
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage subsystem comprises a set of zone definitions that uses physical block addresses to divide a memory array in the storage subsystem into zones or segments. A set of zone parameters defines user access modes and security levels for each of the segments. Defining zones for the memory array provide flexibility and increased protection for data stored in the memory array. For example, data of one zone can be quickly erased without affecting data stored in other zones and critical data can be stored in read-only zones to prevent inadvertent overwrite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.