Storage device and method and for storage device state recovery

摘要

A storage device and method for storage device state recovery are provided. In one embodiment, a storage device commences an authentication process to authenticate a host device. The authentication process comprises a plurality of phases, and the storage device stores the state of the authentication process, wherein the state indicates the phase(s) of the authentication process that have been successfully completed. After a power loss, the storage device retrieves the state of the authentication process and resumes an operation with the host device without re-performing the phase(s) of the authentication process that have been completed.

主权项

1. A method for storage device recovery, the method comprising:
performing the following in a storage device:
commencing an authentication process to authenticate a host device, wherein the authentication process comprises a plurality of phases;storing a state of the authentication process, wherein the state indicates the phase(s) of the authentication process that have been successfully completed;after a power loss, receiving a recovery command from the host device;determining if the recovery command indicates that the host device is a pre-authenticated entity;if the storage device determines that the recovery command indicates that the host device is a pre-authenticated entity:
retrieving the state of the authentication process; andresuming an operation with the host device without re-performing the phase(s) of the authentication process that have been completed; andif the storage device determines that the recovery command does not indicate that the host device is a pre-authenticated entity, operating in a blocked state that indicates a failure to log in.