Point-in-time backing up or restoration of persistent data

Error detection; Error correction; Monitoring > Responding to the occurrence of a fault, e.g. fault tolerance > Error detection or correction of the data by redundancy in operations > Point-in-time backing up or restoration of persistent data

Error detection; Error correction; Monitoring (error detection, correction or monitoring in information storage based on relative movement between record carrier and transducer G11B20/18; monitoring, i.e. supervising the progress of recording or reproducing G11B27/36; in static stores G11C29/00) > Responding to the occurrence of a fault, e.g. fault tolerance > Error detection or correction of the data by redundancy in operations (error detection or correction of the data by redundancy in hardware G06F11/16) > Point-in-time backing up or restoration of persistent data