International Business Machines Corporation

Isabell Schwertle

Thomas Spatzier

Gerd Breiter

Simon D Moser

David Bruce Lindquist

John Elliott Arwe

Hoang Anh Le

Marek Chodorowski

Felix Dross

Narine Kokhlikyan

Thomas Lumpp

Wolfgang Schaeberle

David B Petersen

Juergen P Schneider

Oliver Benke

Markus Mueller

Martin Reitz

Bernd Jostmeyer

Walter Schueppen

Jeurgen Schneider

Instantiating a resource of an IT-service includes analyzing a service model of an IT-service, the service model including a node representing a resource for providing the IT-service. A resource type of the resource being indicated by the node is determined, and a resource manager being operable to instantiate the resource is identified. A resource-manager-specific API of the resource manager is identified, and at least one abstract method for instantiating the resource is overridden with a resource-manager specific method of the resource-manager-specific API. The resource-manager specific method for instantiating the resource represented by the node is executed.

Instantiating resources of an IT-service

Instantiating a resource of an IT-service includes analyzing a service model of the IT-service where the service model includes a node representing a resource for providing the IT-service. The node has a generic API providing an abstract method for instantiating the resource. A determination is made whether the node is a multi-instance node representing a resource being instantiable multiple times. If so, a determination is made whether a first instance of the resource represented by the multi-instance node already exists in a runtime environment providing the IT-service. If so, a selection criteria is computed to identify and select a resource manager configured to instantiate a second instance of the resource based on collocation or anti-collocation parameters in the runtime environment. The abstract method for instantiating the second instance of the resource is overridden with a resource-manager specific method of a resource-manager-specific API specified by the selected resource manager.

A running of an application resource of a first site of at least two sites is stopped from accessing a storage device of the first site. A running of a replication resource is brought to a stop. The replication resource is configured to control a replication of data between the storage device on the first site on which data from the running application resource on the first site are stored to the storage device on the second site. A replication request is submitted to the automation engine for changing a replication direction to run from the second site to the first site. The application resource is started on the second site only after changing the replication direction to start from the storage device on the second site instead of from the storage device of the first site.

Method for controlling changes of replication directions in a multi-site disaster recovery environment for high available application

Allocating an instance of a resource to an IT-service includes analyzing a service model specifying the structure of an IT-service and including nodes and resource management rules specifying the management of the node's resource. For each node, a resource type indicated by the node is determined. Resource management rules assigned to the node are also determined. The resource management rules assigned to the node are evaluated on a resource instance catalog for computing selection criteria. The selection criteria is applied on a service provider catalog for selecting a resource manager for providing an instance of the resource. An instance of the resource is created by the selected resource manager and allocated to the IT-service.

Allocating instantiated resources to an IT-service

Instantiating a resource of an IT-service includes analyzing a service model of the IT-service where the service model includes a node representing a resource for providing the IT-service. A resource type of the resource being indicated by the node is determined, and a service provider catalog is evaluated to determine a resource manager operable to instantiate the resource and an address of the resource manager. A request is sent to the address of the resource manager for a description of a resource-manager-specific API of the resource manager. Upon receipt of the requested description, at least one abstract method for instantiating the resource is overridden with a resource-manager specific method of the resource-manager-specific API, and the resource-manager specific method for instantiating the resource represented by the node is executed.

Instantiating a resource of an IT-service includes: analyzing a service model including nodes representing resources and being indicative of a resource type, each node comprising a generic API providing at least one abstract method for instantiating the resource represented by the respective node. For each node, determining the resource type indicated by the node; evaluating a service provider catalog indicative of a resource manager operable to provide a resource of a given resource type and determining an address of the resource manager; selecting a resource manager; sending a request to the address of the selected resource manager for a description of a resource-manager-specific API of the resource manager; receiving the requested description from the selected resource manager; overriding the abstract method by a resource-manager specific method of the resource-manager-specific API for instantiating the resource; and executing the overridden abstract method for instantiating the resource represented by the node.

Allocating an instance of a resource to an IT-service includes: analyzing a service model specifying the structure of an IT-service and comprising nodes and resource management rules specifying the management of said node's resource. For each node, the method includes: determining a resource type indicated by said node; determining one or more resource management rules assigned to said node; evaluating the resource management rules assigned to said node on a resource instance catalog and the determined resource type for computing selection criteria; applying the selection criteria on a service provider catalog for selecting one of the one or more resource managers, the service provider catalog being indicative of one or more of the resource managers respectively being operable to provide a resource instance of a given resource type to the IT-service; creating an instance of the resource provided by the selected resource manager; and allocating said instance to the IT-service.

A system and technique for allocating instances of resources to an IT-service includes a management engine operable to analyze a service model specifying a structure of an IT-service comprising nodes representing resources and being indicative of a resource type of said represented resource. Management rules specify the management of said node's resource. For each node, the engine determines the resource type indicated by said node; determines rules assigned to said node; evaluates the rules assigned to said node on a resource instance catalog and the determined resource type; applies a selection criteria on a service provider catalog for selecting a resource manager, the service provider catalog being indicative of one or more resource managers respectively being operable to provide a resource instance of a given resource type to the IT-service; create an instance of the resource provided by the selected resource manager; and allocate said instance to the IT-service.

Allocating instantiated resources to an it-service

A system for instantiating resources of an IT-service includes a management engine operable to analyze a service model of said IT-service comprising nodes representing the resources and being indicative of a resource type of said represented resources. Each node comprises a generic API not being specific to any particular resource manager and providing an abstract method for instantiating the resource represented by the respective node. For each node, determining the resource types being indicated by said node; evaluating a service provider catalog indicative of resource managers operable to provide a resource of a given resource type and determining an address of each resource manager; selecting one of the resource managers; sending a request to the address of the selected resource manager for a description of a resource-manager-specific API of said resource manager; overriding said abstract method by a resource-manager-specific method for the API; and executing the overridden abstract method.

Provided are techniques for determining a recovery time for a resource in a heterogeneous computing environment comprising interdependent resources. A graph for the resource representing all sequence dependencies and all group relations are created. The recovery time may be a cumulative startup time or a cumulative shutdown time of the resource considering interdependencies of the resource to other resources. The recovery time for all support resources having sequence dependencies with the resource is calculated and each node representing the support resources are removed from the graph. Then the recovery time for all member resources left in the graph that have group relations with the resource is calculated per a group type of the resource. The recovery time for the resource is a sum of the recovery time of all support resources, the recovery time of all member resources, and a unit recovery time of the resource.

Determining recovery time for interdependent resources in heterogeneous computing environment

A mechanism is provided for determining an incident of a resource in a computing environment. An event pertaining to the resource is processed by a system automation module. The event is represented as an associated event data having parameters of a target state, a target state prior to the event, a current state, and a current state prior to the event. First, the target state is compared to the target state prior to the event to assure that the target state is steady. Wherein a determination that the event is an incident cannot be made after comparing the target state and the current state, the system automation module compares the current state to the current state prior to the event. Upon determining that the event is an incident, the event data is marked and stored in a repository.

Determining availability parameters of resource in heterogeneous computing environment

A system and associated method for determining a recovery time for a resource in a heterogeneous computing environment comprising interdependent resources. A graph for the resource representing all sequence dependencies and all group relations are created. The recovery time may be a cumulative startup time or a cumulative shutdown time of the resource considering interdependencies of the resource to other resources. The recovery time for all support resources having sequence dependencies with the resource is calculated and each node representing the support resources are removed from the graph. Then the recovery time for all member resources left in the graph that have group relations with the resource is calculated per a group type of the resource. The recovery time for the resource is a sum of the recovery time of all support resources, the recovery time of all member resources, and a unit recovery time of the resource.

Growing community of inventors

Metzingen, Germany

Isabell Schwertle