Method of resetting a server
First Claim
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1. A method for resetting a computer, the method comprising the acts of:
- sending a reset command from a second computer through a remote interface to a first computer;
executing the command on a microcontroller in the first computer; and
sending a reset signal from the microcontroller directly to a processor in the first computer via a signal path provided between the microcontroller and the processor thereby resetting the first computer regardless of the state of the processor.
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Abstract
A fault tolerant method of resetting a server through either a local or remote client machine. The remote machine accesses the server by use of a dial-in modem connection, while the local machine accesses the server by a local serial connection. The resetting operation brings the server and the operating system software to a normal operational state. Reset is used after diagnostics or recovery have been performed without the use of the server operating system software or to restart the server after an unexpected crash.
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Citations
11 Claims
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1. A method for resetting a computer, the method comprising the acts of:
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sending a reset command from a second computer through a remote interface to a first computer;
executing the command on a microcontroller in the first computer; and
sending a reset signal from the microcontroller directly to a processor in the first computer via a signal path provided between the microcontroller and the processor thereby resetting the first computer regardless of the state of the processor. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of resetting a computer, the method comprising the acts of:
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connecting a remote interface to a first computer and a second computer;
providing a resetting command at the second computer directed to the first computer;
encapsulating the command in a communications protocol;
transmitting the encapsulated command to the remote interface;
communicating the command received by the remote interface to a microcontroller over a bus in the first computer;
executing the command on the microcontroller in the first computer; and
sending a reset signal from the microcontroller directly to a processor in the first computer via a signal path provided between the microcontroller and the processor thereby resetting the first computer regardless of the state of the processor. - View Dependent Claims (8, 9, 10)
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11. A method of external management of a computer, the method comprising the acts of:
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connecting a remote interface to a first computer and a second computer;
providing a management command at the second computer directed to the first computer;
transmitting the command to the remote interface;
communicating the command received by the remote interface over a bus to a microcontroller in the first computer;
executing the command on the microcontroller in the first computer; and
sending a management signal from the microcontroller directly to a central processing unit in the first computer via a signal path provided between the microcontroller and the processor thereby managing the first computer regardless of the state of the central processing unit.
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Specification