USING DEVICE STATUS INFORMATION TO TAKEOVER CONTROL OF DEVICES ASSIGNED TO A NODE
First Claim
1. A method, comprising:
- communicating, by a first processing unit, with a second processing unit;
using, by the first processing unit, a first device accessible to both the first and second processing units;
using, by the second processing unit, a second device accessible to both the first and second processing units;
receiving, by the first processing unit, status on the second device from the first device indicating whether the second device is available or unavailable;
detecting, by the first processing unit, a failure of the second processing unit;
determining, by the first processing unit, from the received status on the second device whether the second device is available in response to detecting the failure of the second processing unit; and
configuring, by the first processing unit, the second device for use by the first processing unit in response to determining that the received status on the second device indicates that the second device is available and in response to detecting the failure.
1 Assignment
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Accused Products
Abstract
Provided are a method, system, and article of manufacture for using device status information to takeover control of devices assigned to a node. A first processing unit communicates with a second processing unit. The first processing unit uses a first device accessible to both the first and second processing units and the second processing unit uses a second device accessible to both the first and second processing units. The first processing unit receives status on the second device from the first device indicating whether the second device is available or unavailable. The first processing unit detects a failure of the second processing unit and determines from the received status on the second device whether the first device is available in response to detecting the failure of the second processing unit. The first processing unit configures the second device for use by the first processing unit in response to determining that the received status on the second device indicates that the second device is available and in response to detecting the failure.
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Citations
20 Claims
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1. A method, comprising:
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communicating, by a first processing unit, with a second processing unit; using, by the first processing unit, a first device accessible to both the first and second processing units; using, by the second processing unit, a second device accessible to both the first and second processing units; receiving, by the first processing unit, status on the second device from the first device indicating whether the second device is available or unavailable; detecting, by the first processing unit, a failure of the second processing unit; determining, by the first processing unit, from the received status on the second device whether the second device is available in response to detecting the failure of the second processing unit; and configuring, by the first processing unit, the second device for use by the first processing unit in response to determining that the received status on the second device indicates that the second device is available and in response to detecting the failure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system, comprising:
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a first processing unit; a second processing unit; a first device used by the first processing unit and accessible to both the first and second processing units; a second device used by the second processing unit and accessible to both the first and second processing units; wherein the first processing unit performs operations, the operations comprising; receiving status on the second device from the first device indicating whether the second device is available or unavailable; detecting a failure of the second processing unit; determining from the received status on the second device whether the second device is available in response to detecting the failure of the second processing unit; and configuring the second device for use by the first processing unit in response to determining that the received status on the second device indicates that the second device is available and in response to detecting the failure. - View Dependent Claims (12, 13, 14, 15)
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16. An article of manufacture including code executed by a first and second processing units, wherein the first and second processing units are in communication with each other and with first and second devices, wherein the first processing unit uses the first device and wherein the second processing unit uses the second device, wherein the code causes the first processing unit to perform operations, the operations comprising:
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receiving status on the second device from the first device indicating whether the second device is available or unavailable; detecting a failure of the second processing unit; determining from the received status on the second device whether the second device is available in response to detecting the failure of the second processing unit; and configuring the second device for use by the first processing unit in response to determining that the received status on the second device indicates that the second device is available and in response to detecting the failure. - View Dependent Claims (17, 18, 19, 20)
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Specification