Abstract: A method, including deploying multiple servers as a distributed computing system (DCS) configured to provide a service to clients. At a first time, a given server is configured as an active node in the DCS, the active node configured to and to process requests for the service received from the clients. At the first time, one or more remaining first servers are configured as one or more semi-active nodes in the DCS, each given semi-active node configured to receive, from the clients, requests for the service, and to forward the received requests to the active node for processing. Each of the servers maintains respective counts of the received requests, and at a second time subsequent to the first time, upon identifying a given remaining server having a highest count the given remaining server is reconfigured as the active node, and the given server is reconfigured as a semi-active node.

Abstract: Embodiments for performance management in a computing storage environment. In a storage system having a predetermined number of available quality of service (QoS) values associated with a performance of the storage system, the predetermined number of available QoS values are spread over a range such that a user requested QoS value is matched with one of the available QoS values within an optimal deviation value to a given precision.

Abstract: Embodiments for volume management in a data storage environment. A storage pool of a plurality of storage pools is selected to provision at least one storage volume by calculating, for each of the plurality of storage pools, a forecast factor representing an expected usage according to an overall size of the at least one storage volume. The selected storage pool is the storage pool of the plurality of storage pools having a smallest forecast factor.

Abstract: A method for routing communication paths among computing devices. The method includes a one or more computer processors identifying a computing entity and a data storage entity that transfer data. The method further includes determining a plurality of communication ports that the data storage entity utilizes to transfer data to the computing entity. The method further includes identifying a plurality of computing resources respectively associated with the determined plurality of communication ports that the data storage entity utilizes to transfer the data to the computing entity. The method further includes generating a list of tuples for the data storage entity based, at least in part, on the identified plurality of computing resources and the determined plurality of communication ports.

Abstract: A method, including deploying multiple servers as a distributed computing system (DCS) configured to provide a service to clients. At a first time, a given server is configured as an active node in the DCS, the active node configured to and to process requests for the service received from the clients. At the first time, one or more remaining first servers are configured as one or more semi-active nodes in the DCS, each given semi-active node configured to receive, from the clients, requests for the service, and to forward the received requests to the active node for processing. Each of the servers maintains respective counts of the received requests, and at a second time subsequent to the first time, upon identifying a given remaining server having a highest count the given remaining server is reconfigured as the active node, and the given server is reconfigured as a semi-active node.

Abstract: A method, including deploying multiple servers as a distributed computing system (DCS) configured to provide a service to clients. At a first time, a given server is configured as an active node in the DCS, the active node configured to and to process requests for the service received from the clients. At the first time, one or more remaining first servers are configured as one or more semi-active nodes in the DCS, each given semi-active node configured to receive, from the clients, requests for the service, and to forward the received requests to the active node for processing. Each of the servers maintains respective counts of the received requests, and at a second time subsequent to the first time, upon identifying a given remaining server having a highest count the given remaining server is reconfigured as the active node, and the given server is reconfigured as a semi-active node.

Abstract: Methods, computing systems and computer program products implement embodiments of the present invention that include receiving a request including a specified number of logical volumes, and identifying, in a storage system including multiple storage pools having storage space, respective first amounts of the storage space that are available in the multiple storage pools. Based on the specified number of logical volumes and the first amounts of the storage space, a set of volume sizes indicating second amounts of the storage space are defined, and a given volume size indicating a maximum size for the specified number of logical volumes is identified. Upon conveying the maximum size to a user, and receiving, from the user, a specified size less than or equal to the maximum size, the specified number of the volumes having the specified size can be provisioned, wherein each of the volumes is stored in a given storage pool.

Abstract: Embodiments of the present invention provide methods and systems for calculating capacity allocation in storage systems. Embodiments of the present invention can be used to calculate a capabilities score for all storage systems, resulting in a list of storage systems, prioritized, so that a storage administrator may select automatically or manually, the best system to provision for the requesting application, based on the calculated capabilities score of each storage system.

Abstract: A method for routing communication paths among computing devices. The method includes a one or more computer processors identifying a computing entity and a data storage entity that transfer data. The method further includes determining a plurality of communication ports that the data storage entity utilizes to transfer data to the computing entity. The method further includes identifying a plurality of computing resources respectively associated with the determined plurality of communication ports that the data storage entity utilizes to transfer the data to the computing entity. The method further includes generating a list of tuples for the data storage entity based, at least in part, on the identified plurality of computing resources and the determined plurality of communication ports.

Abstract: A method for routing communication paths among computing devices. The method includes a one or more computer processors identifying a computing entity and a data storage entity that transfer data. The method further includes determining a plurality of communication ports that the data storage entity utilizes to transfer data to the computing entity. The method further includes identifying a plurality of computing resources respectively associated with the determined plurality of communication ports that the data storage entity utilizes to transfer the data to the computing entity. The method further includes generating a list of tuples for the data storage entity based, at least in part, on the identified plurality of computing resources and the determined plurality of communication ports.

Abstract: A method for routing communication paths among computing devices. The method includes a one or more computer processors identifying a computing entity and a data storage entity that transfer data. The method further includes determining a plurality of communication ports that the data storage entity utilizes to transfer data to the computing entity. The method further includes identifying a plurality of computing resources respectively associated with the determined plurality of communication ports that the data storage entity utilizes to transfer the data to the computing entity. The method further includes generating a list of tuples for the data storage entity based, at least in part, on the identified plurality of computing resources and the determined plurality of communication ports.

Abstract: Various embodiments for multipath management in a storage grid, by a processor device, are provided. In one embodiment, a method comprises continuously monitoring and comparing current data path devices against the current storage structure, and changing routing decision configurations when it is detected there is a more efficient data path.

Abstract: A method for routing communication paths among computing devices. The method includes a one or more computer processors identifying a computing entity and a data storage entity that transfer data. The method further includes determining a plurality of communication ports that the data storage entity utilizes to transfer data to the computing entity. The method further includes identifying a plurality of computing resources respectively associated with the determined plurality of communication ports that the data storage entity utilizes to transfer the data to the computing entity. The method further includes generating a list of tuples for the data storage entity based, at least in part, on the identified plurality of computing resources and the determined plurality of communication ports.

Abstract: A method for routing communication paths among computing devices. The method includes a one or more computer processors identifying a computing entity and a data storage entity that transfer data. The method further includes determining a plurality of communication ports that the data storage entity utilizes to transfer data to the computing entity. The method further includes identifying a plurality of computing resources respectively associated with the determined plurality of communication ports that the data storage entity utilizes to transfer the data to the computing entity. The method further includes generating a list of tuples for the data storage entity based, at least in part, on the identified plurality of computing resources and the determined plurality of communication ports.