System with manual actuator for asserting physical presence across multiple compute nodes
US9280355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2013 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | May 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2133
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system includes a multi-node chassis including a chassis management module, a plurality of compute nodes, and a physical presence manual actuator for transmitting a physical presence signal to each compute node in response to manual actuation. Each server has a firmware interface, a trusted platform module, and an AND gate. The firmware interface has a general purpose input output pin for providing an enabling signal in response to a user instruction to a firmware interface setup program that communicates with the firmware interface. The AND gate has a first input receiving the enabling signal, a second input receiving the physical presence signal, and an output coupled to the trusted platform module, wherein the AND gate for a selected compute node asserts physical presence to the trusted platform module of the selected compute node in response to receiving both the enabling signal and the physical presence signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.