System and method for improving data integrity and power-on performance in storage devices
US9075708B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | May 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7209
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure is directed to managing write commands for a storage system implementing address indirection. In some storage systems, a mapping table that provides logical-to-physical mapping may have individual entries that each references a logical address size that exceeds the size of an atomic write to the storage media. In such systems, a write to a logical address is not atomic as it may require several discrete physical writes that may individually fail. The techniques presented employ several pre-commit and post-commit actions to save data that enables the storage system to make writes to these logical addresses atomic and prevent undue delay on powerup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.