Apparatus, system, and method for managing out-of-service conditions
US9213594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2012 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Sep 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An adaptive logical storage element comprises a plurality of solid-state storage elements accessible in parallel. The logical storage element includes logical storage units, which may include logical page, logical storage divisions (erase blocks), and so on. Each logical storage unit comprises a plurality of physical storage units. A logical storage unit may include one or more physical storage units that are out-of-service (OOS). The OOS status of logical storage units is tracked by OOS metadata. When data is stored on the logical storage element, padding data is provided to physical storage units that are OOS, and valid and/or parity data is provided to in-service physical storage units. A write data pipeline accesses the OOS metadata to insert padding data, and a read data pipeline accesses the OOS metadata to strip padding data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.