International Business Machines Corporation

Paul Wojciak

Ali Y Duale

Stephen Robert Guendert

John Scott Houston

Donald Crabtree

Stephen P Cherniak

Joydeep Banerjee

Aviad Zlotnick

Orna Raz

Marcel Zalmanovici

Randall L Tackett

A time server of a server time protocol (STP) facility of a coordinated timing network (CTN) receives a primary-reference-time (PRT) update, with the primary-reference-time update having been determined with reference to a time source, which includes a precision-time-protocol (PTP) source. The time server sets a primary reference time correction steering rate for the coordinated timing network based on receiving the primary-reference-time update, and broadcasts to one or more other servers of the coordinated timing network a PRT-correction-steering information block (PCSIB). The PRT-correction-steering information block includes a precision-time-protocol identifier for the time source used in determining the primary-reference-time update, and the primary-reference-time correction steering rate set by the time server.

Facilitating precision time protocol use in a coordinated timing network

A set of test cases is obtained to evaluate the resource configuration of a computing environment. One or more test cases of the set of test cases are randomly selected and sent to one or more logical partitions of the computing environment. Execution of the one or more test cases on the one or more logical partitions is monitored. Based on the monitoring, verify whether processing associated with the one or more logical partitions is being performed at an acceptable level. Based on the verifying indicating that the processing is not at an acceptable level, initiating reconfiguring of resources of at least one logical partition of the one or more logical partitions.

Allocation of resources among logical partitions

A time server of a coordinated timing network (CTN) receives a command, including a primary-reference-time (PRT) source identifier identifying a time source in use for the server time protocol (STP) facility as a precision-time-protocol (PTP) time server. The time server obtains the primary-reference-time source identifier from the command, and distributes the primary-reference-time source identifier obtained from the command to one or more other servers of the coordinated timing network to facilitate processing within the coordinated timing network.

Setting primary reference time of server time protocol facility of a coordinated timing network to a precision-time-protocol source

Methods, systems, and computer program products for creating test cases are provided. Aspects include obtaining, by a processor, customer usage data from a plurality of customers. The customer usage data is analyzed to identify one or more outlier customer system configurations. A set of customer system attributes are extracted from the one or more outlier customer system configurations and new test cases are created based at least in part on the set of customer system attributes.

Test case definition and verification of logical resources in a computing environment

A method, product and apparatus for creating functional model of test cases. The method comprising obtaining a set of test cases, wherein each test case of the set of test cases comprises free-text; defining one or more tags, wherein each tag of the one or more tags is associated with a query that is configured, when applied, to determine possession of the tag with respect to a test case based on the free-text; applying the queries on the set of test cases to determine possession of the of the one or more tags for each test case; and generating a functional model based on the set of test cases, wherein the functional model comprising for each tag of the one or more tags, a corresponding functional attribute.

Method and system for creating functional model of test cases

Mechanisms are provided for determining threshold conditions for performing operations within a performance monitoring tool. Metric data is collected from a computing system environment and clustering analysis is performed on the metric data to generate a plurality of clusters. One or more candidate clusters are selected that are candidate clusters for generating a threshold condition for performance monitoring. At least one threshold condition for performance monitoring is generated based on a composition of the selected one or more candidate clusters. The at least one threshold condition is then applied to future performance metric data to determine whether to perform an operation in response to the future performance metric data meeting or not meeting the at least one threshold condition.

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Poughkeepsie, NY, United States of America

Paul Wojciak