Patent ID: 8195901
Filing Date: 2012-06-05
Classification: G06F,G11B

Abstract:
1. A method, in a data processing system, for firehose dumping modified data in a static random access memory of a hard disk drive to non-volatile memory of the hard disk drive during a power event, the method comprising: receiving an indication of the power event in the hard disk drive; suspending command processing in the hard disk drive; setting a token in the non-volatile storage indicating that a flash memory in the non-volatile memory contains the modified data; copying a portion of a static random access memory cache table containing information on the modified data in the static random access memory to the flash memory; copying the modified data from the static random access memory to the flash memory, wherein copying the modified data from the static random access memory to the flash memory further comprises: determining whether the power event that initiated the copy of the modified data in the static random access memory to the flash memory is still present; and responsive to the power event that initiated the copy still being present, shutting down the hard disk drive.