Microsoft Technology Licensing, LLC

James Bovee

Vladimir Sadovsky

Robin Andrew Alexander

Nathan Steven Obr

Ravinder S Thind

Lee Edward Prewitt

Henry Gabryjelski

Oren Rosenbloom

Bruce John Sherwin, Jr

Narasimhan Ramasubramanian

Emily Nicole Hill

Tristan Charles Griffith

Tobias Marius Klima

Philipp Ruilin Liu

Lee Prewitt

Ravinder Thind

In a transient storage device (TSD) with multiple authentication silos, a host computing device connected to the TSD is configured by the TSD to discover and act upon various types of authentication information in the silos. One or more logical combinations of authentication silos are switched to the authenticated state to grant access to an associated storage area. A particular ordering of authentication silos may be required to achieve a valid combination of authenticated silos. Ordering may be suggested by configuration information in the TSD. Ordering may also be based upon whether or not user input is required for authenticating a given authentication silo, the environment of use of the TSD, or a hierarchy from most trusted to least trusted authentication silo. With this information, the host proceeds with the most efficient authentication sequence leading to a grant of access to the storage area.

Authorization for transient storage devices with multiple authentication silos

Systems and methods for detecting legacy storage devices that may falsely and/or incorrectly report to host systems that they have removable media. Such false or incorrect reporting may cause the host system to periodically poll the storage device as to whether the device is ready for I/O processing. Such polling would be unnecessary and represent a waste of power expended by the host system. In one embodiment, the present system may implement processes that periodically poll storage media and update a database. The database would be a listing of storage devices indicating whether they truly have removable media or falsely report that they have removable media. In another embodiment, the present system may apply some heuristically testing to determine whether a storage device so falsely indicates removable media. In another embodiment, telemetry service may be used by a group of hosts to share data regarding such storage devices.

Systems and methods for host detection of USB asynchronous notification capability

Methods and devices are provided for adapting an I/O pattern, with respect to a processing device using a non-volatile block storage device based on feedback from the non-volatile block storage device. The feedback may include information indicating a status of the non-volatile block storage device. In response to receiving the feedback, a storage subsystem, included in an operating system executing on processing device, may change a behavior with respect to the non-volatile block storage device in order to avoid, or reduce, a negative impact to the non-volatile block storage device or to enhance an aspect of the non-volatile block storage device. The feedback may include performance information and/or operating environmental information of the non-volatile block storage device. When the non-volatile block storage device is not capable of providing the feedback, the processing device may request information about the non-volatile block storage device from a database service.

Health reporting from non-volatile block storage device to processing device

In embodiments of adaptive idle timeout for storage devices, a computing device includes a storage device that stores data for read and write access on a rotating media. An operating system of the computing device maintains a device cycle number as an accounting of each time the storage device is powered on-off. The computing device implements a storage device driver that is implemented to obtain the device cycle number of the storage device from the operating system, and determine a projected cycle number over a duration of operational time of the storage device based on the device cycle number. The storage device driver can then determine whether the projected cycle number exceeds a maximum of power on-off cycles within a warranty period of the storage device, and control a frequency of the storage device being powered-off if the projected cycle number exceeds the maximum of power on-off cycles.

Adaptive idle timeout for storage devices

A system is disclosed for centralized management of access permissions to unique class identifier devices on client terminals using a group policy framework. The system includes a first aspect whereby administrative templates related to the unique class identifier devices are used to configure a user interface allowing an IT administrator or other to set access permissions for the unique class identifier devices. The system further includes a second aspect for implementing the access permissions to the unique class identifier devices on the client terminals.

Group policy for unique class identifier devices

Access rights may be managed using non-volatile memory. The charge retention characteristics in devices with non-volatile memory are used to establish time-limited rights. Time duration is calculated using the floating gate in a storage cell. First, time-limited rights are determined from a license. Second, a set of computer software selects a time-sensitive storage cell, containing the floating gate, in the non-volatile memory that approximates the required time duration in the license.

Growing community of inventors

Redmond, WA, United States of America

James Bovee