Patent ID: 7418635

Claim:
A computer system with data backup, comprising: a data backup removable media drive system for backing up data of the host computer to which the drive system is connected; read/write hardware for reading and writing data from and to a removable storage media of the drive system; an embedded application computer of the drive system comprising a firmware memory which stores firmware, and a data memory which stores data; a snapshot dump system of the drive system comprising an error trigger detector system which detects errors, and a snapshot dump initiator responsive to the trigger detector system; a non-volatile snapshot dump memory receiving information from memory locations stored at a time at which said error is detected; and said error trigger detector system comprising a hard error trigger detector wherein a current operation is terminated but new commands are accepted, a soft error trigger detector which detects a problem level which is not as high as for the hard error trigger detector, and a firmware trigger detector where the drive system stops.