Patent ID: 6412083
Filing Date: 2002-06-25
Classification: G06F,G11B

Abstract:
A method of operating a disk drive for enabling a host computer to assist in rescuing a rescue-candidate location having drive-unrecoverable data, the disk drive including a disk and an interface to the host computer, the disk defining a multiplicity of addressable locations each having a logical address, the method of operating the disk drive comprising the steps of:performing a plurality of read operations on a selected one of the multiplicity of addressable locations; determining whether the selected addressable location contains drive-unrecoverable data; identifying the selected addressable location as a rescue-candidate location if the selected addressable location contains drive-unrecoverable data; recording the logical address of the rescue-candidate location in a list; transferring the list to the host computer via the interface in response to a list-requesting command from the host computer; and responding to a write command from the host computer to write host data to a selected rescue-candidate location having a logical address recorded in the list such that a subsequent read operation can recover the host data; whereby the step of transferring the list to the host computer enables the host computer to assist in rescuing the selected rescue-candidate location.