Abstract: Methods for generating a characterizing summary and generating a collection of relevant preservation objects in a preservation system are provided. A characterizing summary is generated by collecting first information about a preservation object; collecting second information about other preservation objects or other metadata; generating a characterizing summary according to the first information and the second information; and adding the characterizing summary to the preservation object. A collection of relevant preservation objects is generated by accessing one or more preservation objects by way of one or more metadata included in a target preservation object constructed for content data; determining whether each of the accessed preservation objects is relevant to the target preservation object; adding each relevant preservation object to a list of relevant preservation objects; and generating the collection of relevant preservation objects according to the list of relevant preservation objects.

Abstract: A method for managing a computer system includes monitoring first violations of a service level objective (SLO) of a service running on the computer system so as to determine a first statistical behavior of the first violations. Second violations of a component performance threshold of a component of the computer system are monitored so as to determine a second statistical behavior of the second violations. A model that predicts the second statistical behavior based on the first statistical behavior is produced. The component performance threshold is automatically adjusted responsively to the model, so as to improve a prediction of the first violations by the second violations.

Abstract: Methods for generating a characterizing summary and generating a collection of relevant preservation objects in a preservation system are provided. A characterizing summary is generated by collecting first information about a preservation object; collecting second information about other preservation objects or other metadata; generating a characterizing summary according to the first information and the second information; and adding the characterizing summary to the preservation object. A collection of relevant preservation objects is generated by accessing one or more preservation objects by way of one or more metadata included in a target preservation object constructed for content data; determining whether each of the accessed preservation objects is relevant to the target preservation object; adding each relevant preservation object to a list of relevant preservation objects; and generating the collection of relevant preservation objects according to the list of relevant preservation objects.

Abstract: A method for diagnosing network performance problems includes providing a graph representing a topology of a network including first nodes that are classified as providers of a resource, second nodes that are classified as consumers of the resource, and third nodes that are classified as mediators intervening between the providers and the consumers. Responsively to a report of a performance problem encountered by a given consumer in the network, at least one input/output (I/O) path is traced through the graph connecting the given consumer to one or more of the providers. One or more problematic nodes are identified along the at least one I/O path as possible causes of the performance problem.

Abstract: A method for managing a computer system includes monitoring first violations of a service level objective (SLO) of a service running on the computer system so as to determine a first statistical behavior of the first violations. Second violations of a component performance threshold of a component of the computer system are monitored so as to determine a second statistical behavior of the second violations. A model that predicts the second statistical behavior based on the first statistical behavior is produced. The component performance threshold is automatically adjusted responsively to the model, so as to improve a prediction of the first violations by the second violations.

Abstract: A method for managing a computer system includes monitoring first violations of a service level objective (SLO) of a service running on the computer system so as to determine a first statistical behavior of the first violations. Second violations of a component performance threshold of a component of the computer system are monitored so as to determine a second statistical behavior of the second violations. A model that predicts the second statistical behavior based on the first statistical behavior is produced. The component performance threshold is automatically adjusted responsively to the model, so as to improve a prediction of the first violations by the second violations.

Abstract: A method for diagnosing network performance problems includes providing a graph representing a topology of a network including first nodes that are classified as providers of a resource, second nodes that are classified as consumers of the resource, and third nodes that are classified as mediators intervening between the providers and the consumers. Responsively to a report of a performance problem encountered by a given consumer in the network, at least one input/output (I/O) path is traced through the graph connecting the given consumer to one or more of the providers. One or more problematic nodes are identified along the at least one I/O path as possible causes of the performance problem.