Techniques for storage controller quality of service management
First Claim
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1. A network controller, comprising:
- monitor logic configured to monitor a data transfer rate and a data transfer threshold for data transferred between storage and an application that is executing on a data processing system, wherein an initial value of the data transfer threshold is set without consideration of a current actual demand of the application and the data transfer threshold corresponds to a quality of service guarantee, and wherein the data transfer threshold corresponds to a data transfer threshold in a network switch;
collector logic configured to collect feedback on the suitability of the data transfer rate from the application; and
threshold adjuster logic configured to change the data transfer threshold for the application based on the monitored data transfer rate and the collected feedback to achieve a quality of service requirement for the application that reflects the current actual demand of the application, wherein the data transfer threshold is lowered in response to the current actual demand of the application being lower than the initial value and is increased when spare capacity is available in response to the current actual demand of the application being higher than the initial value, and wherein the feedback includes an application programming interface (API) message for indicating that a required performance level has been reached.
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Abstract
A technique for managing a data network includes monitoring data transfer rates and data transfer thresholds for data transferred between storage and an application. Feedback on the suitability of the data transfer rate is collected from the application. A data transfer threshold for the application is changed based on the monitored data transfer rate and the collected feedback.
12 Citations
9 Claims
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1. A network controller, comprising:
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monitor logic configured to monitor a data transfer rate and a data transfer threshold for data transferred between storage and an application that is executing on a data processing system, wherein an initial value of the data transfer threshold is set without consideration of a current actual demand of the application and the data transfer threshold corresponds to a quality of service guarantee, and wherein the data transfer threshold corresponds to a data transfer threshold in a network switch; collector logic configured to collect feedback on the suitability of the data transfer rate from the application; and threshold adjuster logic configured to change the data transfer threshold for the application based on the monitored data transfer rate and the collected feedback to achieve a quality of service requirement for the application that reflects the current actual demand of the application, wherein the data transfer threshold is lowered in response to the current actual demand of the application being lower than the initial value and is increased when spare capacity is available in response to the current actual demand of the application being higher than the initial value, and wherein the feedback includes an application programming interface (API) message for indicating that a required performance level has been reached. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer program product for controlling network communication, the computer program product comprising:
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a computer-readable storage device; computer-readable program code embodied on the computer-readable storage device, wherein the computer-readable program code, when executed by a processor, configures the processor to; monitor a data transfer rate and a data transfer threshold for data transferred between storage and an application that is executing on a data processing system, wherein an initial value of the data transfer threshold is set without consideration of a current actual demand of the application and the data transfer threshold corresponds to a quality of service guarantee, and wherein the data transfer threshold corresponds to a data transfer threshold in a network switch; collect feedback on the suitability of the data transfer rate from the application; and change a data transfer threshold for the application based on the monitored data transfer rate and the collected feedback to achieve a quality of service requirement for the application that reflects the current actual demand of the application, wherein the data transfer threshold is lowered in response to the current actual demand of the application being lower than the initial value and is increased when spare capacity is available in response to the current actual demand of the application being higher than the initial value, and wherein the feedback includes an application programming interface (API) message for indicating that a required performance level has been reached. - View Dependent Claims (9)
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Specification