Hewlett Packard Enterprise Development LP

Han Wang

Patrick A Raymond

Raghavan V Venugopal

Hai Ngoc Nguyen

Joseph Foster

David W Engler

David Kimler Altobelli

Justin Haanbyull Park

David Paul Mohr

James Alexander Fuxa

William C Hallowell

Chin-Lung Chiang

Edgar Hance

Jyun-Jie Wang

Mark Barlow Hammer

Yovita Iskandar

Sivathevan Maheswaran

In one example, a system for a sensor detection architecture includes a plurality of sensors coupled to a controller to simultaneously detect abnormalities of a physical system at more than one location of the physical system, wherein each of the plurality of sensors are coupled to at least three other sensors of the plurality of sensors.

Sensor detection architecture

A test and diagnostics circuit, methods and systems are described. An example test and diagnostics circuit includes a controller and a power monitor coupled to the controller. A load switch on the test and diagnostics circuit selectably implements a load from among multiple load values to test a computing and/or data storage system. The test and diagnostics circuit includes circuitry connecting the controller, the power monitor and the load switch to receive a test enable signal from a non-dedicated pin in a non-volatile dual inline memory module (NV-DIMM) slot to implement a test operation on the system.

Removable test and diagnostics circuit

Example implementations relate to a parallel backup power supply. For example, a parallel backup power supply system can include a plurality of backup power supply cells that support a plurality of loads. Each of the backup power supply cells can include a charging module to charge an associated backup power supply cell among the plurality of backup power supply cells and a cell controller. The cell controller is to can be configured to control the charging module and communicate with a management module. The parallel backup power supply system can also include the management module to activate each of the plurality of backup power supply cells to provide backup power in parallel to the plurality of loads as each of the plurality of backup power supply cells is fully charged.

Parallel backup power supply

Examples herein disclose receiving a communication indicating a number of loads supported by multiple nodes and determining an amount of power available at a backup power source. Based on the determination of the amount of power, the examples disclose delivering power to the multiple nodes from the backup power source.

Communication associated with multiple nodes for delivery of power

Example implementations relate to combined backup power. For example, a system for combined backup power can include a combined backup power supply (CBPS) coupled to a node and a plurality of loads supported by the node. The CBPS can include an uninterruptible power supply (UPS) and a backup power supply coupled to the UPS to act as redundancy for the UPS.

Combined backup power

Example implementations relate to selectively enabling backup power to nodes. For example, a system includes a plurality of compute nodes, where each node includes a plurality of loads. The system also includes at least one backup power supply and control module coupled to the nodes and to the at least one backup power supply. The control module is to selectively enable an output of power from the at least one backup power supply to the nodes based on a comparison of a power capacity of the at least one backup power supply and a backup power demand of the nodes.

Selectively enabling backup power to nodes

Described are examples of back-up power apparatuses and systems including such back-up power apparatuses. An example may include a battery module, and a back-up power control module to determine a back-up power demand of a host device and selectively enable an output of power from the battery module to the host device if the battery module has a power capacity greater than the back-up power demand.

Selectively-enabling battery back-up power based on a power demand

Example implementations relate to backup power communication. For example, a system for backup power communication can include a shared backup power supply coupled to a node, a plurality of loads supported by the node, and a pass-through device to support multi-master communication between the shared backup power supply and the plurality of loads.

Backup power communication

Example implementations relate to backup power supply support. For example, a backup power supply support system can include a shared backup power supply controlled by a backup power control module and a support switch coupled to the shared backup power supply. The support switch enables a transition from a primary power supply to the shared backup power supply and the support switch includes system firmware. The system firmware detects a primary power supply compromise, isolates a hardware switch from the shared backup power supply, enables the hardware switch, and transitions to the shared backup power supply.

Backup power supply support

Example implementations relate to placing loads in a self-refresh mode using a shared backup power supply. For example, a shared backup power supply system can include a node coupled to a shared backup power supply. The node can include a plurality of loads that include volatile memory and a processing resource to place the plurality of loads in a self-refresh mode in response to a failure of a primary power supply. A shared backup power supply system can also include the shared backup power supply to provide backup power to the plurality of loads in the self-refresh mode in response to the failure of the primary power supply.

Shared backup power self-refresh mode

Examples herein disclose determining when a battery module is below a full charge and selecting a subset of loads based on a prioritization among multiple loads. The selected subset of loads is to receive power from the battery module. The examples herein deliver power to the selected subset of loads.

Load selection for receiving power from a battery module

A technique includes jointly encrypting and error encoding plain text data. The joint encryption and error encoding includes processing plain text data in an encryption cipher comprising a plurality of successive rounds to generate cipher text data; and embedding error correction encoding in the encryption cipher to error correction encode the cipher text data.

Joint encryption and error correction encoding

Processing data in a distributed data storage system generates a sparse check matrix correlating data elements to data syndromes. The system receives notification of a failed node in the distributed data storage system, accesses the sparse check matrix, and determines from the sparse check matrix a correlation between a data element and a syndrome. The system processes a logical operation on the data element and the syndrome and recovers the failed node.

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Sugar Land, TX, United States of America

Han Wang