System for resetting a server
DCFirst Claim
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1. A system for resetting a computer, the system comprising:
- a first computer,a remote interface in data communication with the first computer,a microcontroller connected to the remote interface; and
a second computer in data communication with the remote interface, the second computer having a processor configured to execute an operating system software, wherein the first computer sends a reset command to the microcontroller via the remote interface, and wherein the microcontroller is configured to provide a reset signal to reset the processor at the second computer.
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Abstract
A fault tolerant computer system for 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 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
32 Claims
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1. A system for resetting a computer, the system comprising:
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a first computer, a remote interface in data communication with the first computer, a microcontroller connected to the remote interface; and a second computer in data communication with the remote interface, the second computer having a processor configured to execute an operating system software, wherein the first computer sends a reset command to the microcontroller via the remote interface, and wherein the microcontroller is configured to provide a reset signal to reset the processor at the second computer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for managing the conditions of a computer, the system comprising:
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a computer including a central processing unit; a microcontroller bus; and a plurality of microcontrollers that are interconnected by the microcontroller bus and wherein the microcontrollers manage the conditions of the computer, and wherein a selected one of the microcontrollers resets the central processing unit via a direct signal path. - View Dependent Claims (21, 22, 23)
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24. A system for resetting a computer, the system comprising:
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a recovery manager executing on a first computer; a microcontroller bus; a plurality of microcontrollers that are interconnected by the microcontroller bus, wherein at least one of the plurality of microcontrollers is configured to cause a reset; a second computer including a central processing unit, wherein the recovery manager sends a reset command to the central processing unit via the at least one of the plurality of microcontrollers. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A system for resetting a computer, the system comprising:
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a first computer; a remote interface in data communication with the first computer; a microcontroller connected to the remote interface; and a second computer in data communication with the remote interface, the second computer comprising a plurality of processors, wherein the first computer sends a reset command to the microcontroller via the remote interface, and wherein the microcontroller is configured to provide a reset signal to reset less than all of the plurality of processors at the second computer.
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32. A system for resetting a computer, the system comprising:
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a first computer; a remote interface in data communication with the first computer, a microcontroller connected to the remote interface; and a second computer in data communication with the remote interface, the second computer comprising a central processing unit, wherein the first computer sends a reset command to the microcontroller via the remote interface, and wherein te microcontroller is configured to provide a reset signal directly to the central processing unit so as to reset the central processing unit at the second computer.
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Specification