Storage subsystem capable of adjusting ECC settings based on monitored conditions
US8296625B2 · kind B2 · utility
181Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2012 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Jan 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/88
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage subsystem monitors one or more conditions related to the probability of a data error occurring. Based on the monitored condition or conditions, the storage subsystem adjusts an error correction setting, and thus the quantity of ECC data used to protect data received from a host system. To enable blocks of data to be properly checked when read from memory, the storage subsystem stores ECC metadata indicating the particular error correction setting used to store particular blocks of data. The storage subsystem may be in the form of a solid-state non-volatile memory card or drive that attaches to the host system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.