Storage system data hardening

摘要

A bridge receives a power down command and in response converts the power down command to a data hardening command. The bridge issues the data hardening command to a solid state disk. In response to the data hardening command, data stored on the solid state disk is hardened. The hardening comprises writing data in volatile memory to non-volatile memory. The data that is hardened comprises user data and protected data. The data hardening command optionally comprises one or more of a flush cache command, a sleep command, and a standby immediate command.

主权项

1. A method comprising:
in an intermediate controller, receiving a power down command and in response converting the power down command to a data hardening command; from the intermediate controller, issuing the data hardening command to a storage device; wherein the storage device, in response to the data hardening command, hardening data stored on the storage device; and reporting that a battery of the storage device is operational when it is determined that the data stored on the storage device was hardened prior to the storage device being powered off.