Method and system for providing storage device file location information

摘要

A method and system are disclosed that permit a host application to obtain cluster location data, for example logical addresses associated with the clusters of a file, and a host application to communicate the logical block address mapping information to firmware of a storage device. The method includes the host transmitting one or more clusters or partial clusters having a signature to the storage device where the storage device knows or has been instructed to look for the signature. The storage device may receive clusters having a signature and, responsive to a host request, return logical address information to a host for the location in the storage device of the marked clusters. The host may parse a data structure on the storage device to obtain remaining cluster location information using a file's first cluster location or may request that the storage device return the cluster location information.

主权项

1. A method for managing a storage device, the method comprising:
in a storage device having a memory and a controller, wherein the storage device is operatively coupled with a host, the controller:
receiving data from the host;identifying clusters in the data having a signature; andtransmitting cluster location data to the host in response to receiving the clusters having the signature, the cluster location data comprising information on a location in the storage device memory of any clusters having the signature.