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1. US20100235715 - Apparatus, system, and method for using multi-level cell solid-state storage as single level cell solid-state storage

Oficina Estados Unidos de América
Número de solicitud 12724401
Fecha de la solicitud 15.03.2010
N.º de publicación 20100235715
Fecha de publicación 16.09.2010
Número de concesión 08261158
Fecha de concesión 04.09.2012
Tipo de publicación B2
CIP
G FISICA
11
REGISTRO DE LA INFORMACION
C
MEMORIAS ESTATICAS
29
Verificación del funcionamiento correcto de memorias; Ensayo de memorias durante su funcionamiento fuera de línea (offline")o en espera ("standby")
G11C 29/00
Solicitantes Fusion-io, Inc.
Inventores Thatcher Jonathan
Flynn David
Barnes Ethan
Strasser John
Wood Robert
Zappe Michael
Mandatarios Holman Jeffrey T.
Título
(EN) Apparatus, system, and method for using multi-level cell solid-state storage as single level cell solid-state storage
Resumen
(EN)

An apparatus, system, and method are disclosed for storing information in a storage device that includes multi-level memory cells. The method involves storing data that is written to the storage device in the LSBs of the multi-level memory cells, and storing audit data in the MSBs of the multi-level memory cells. The audit data can be read separately from the data and used to determine whether or not there has been any unintended drift between states in the multi-level cells. The audit data may be used to correct data when the errors in the data are too numerous to be corrected using error correction code (ECC). The audit data may also be used to monitor the general health of the storage device. The monitoring process may run as a background process on the storage device. The storage device may transition the multi-level memory cells to operate as single-level memory cells.