International Business Machines Corporation

Karen Appleby

Manish Satyapal Gupta

Anca Sailer

Manoj Kumar Agarwal

Anindya Neogi

Gautam Kar

German Sergio Goldszmidt

Liana Liyow Fong

Donald Philip Pazel

Srirama Mandyam Krishnakumar

Servers are allocated for use in one of a plurality of compute-resources or for stand-by storage in a free-pool. Server load metrics are selected (e.g., ping-reply time or CP utilization) for measuring load in the servers. Metrics are measured for the servers allocated to the compute-resources. Several metrics can be measured simultaneously. The metrics for each compute-resource are normalized and averaged. Then, the metrics for each compute-resource are combined using weighting coefficients, producing a global load value, G, for each compute-resource. The G value is recalculated at timed intervals. Upper and lower thresholds are set for each compute-resource, and the G values are compared to the thresholds. If the G value exceeds the upper threshold, then a server in the free-pool is reallocated to the compute-resource; if the G value is less than the lower threshold, then a server is moved from the compute-resource to the free-pool.

Method and system for dynamically allocating servers to compute-resources using capacity thresholds

A problem determination system and method reduces the time and effort required by system administrators to trouble shot transaction processing difficulties in a large distributed I/T environment by monitoring system component performance and computing operational performance threshold limits based on dependency graphs for the system. Using this data, a prioritized list of suspect components for the I/T system is generated.

System and method for problem determination using dependency graphs and run-time behavior models

A method (and structure) in a computer network of controlling the admittance of requests to at least one processing component, includes differentiating the type of received requests based on the message content in each request. Each request is admitted only if the differentiated type meets at least one criterion for admission.

Method, system, and program products for distributed content throttling in a computing environment

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Ossining, NY, United States of America

Karen Appleby