Abstract: A method for enhanced restart of a core dumping application is provided. The method includes stopping a plurality of threads in an address space, except for the thread performing the core dump. Computational segments are remapped to client segments. Each open file descriptor in the address space is closed. The application is terminated and the client segments are flushed to external storage.

Abstract: Multipath I/O in a computer system includes: receiving asynchronously, for a single I/O operation by a memory controller from a plurality of I/O adapters, a request to access a memory page, where each request to access the memory page includes an adapter-specific tag; and for each request received by the memory controller: determining, by the memory controller, whether an adapter-specific tag has been assigned to the memory page; if an adapter-specific tag has not been assigned to the memory page: assigning, by the memory controller, the received adapter-specific tag to the memory page; and allowing, by the memory controller, access to the memory page; and if an adapter-specific tag has been assigned to the memory page, granting access to the memory page only when the received adapter-specific tag is the adapter-specific tag assigned to the memory page.

Abstract: A method for enhanced restart of a core dumping application is provided. The method includes stopping a plurality of threads in an address space, except for the thread performing the core dump. Computational segments are remapped to client segments. Each open file descriptor in the address space is closed. The application is terminated and the client segments are flushed to external storage.

Abstract: Methods and systems for migrating a virtual machine instance between devices include scoring a received migration request against one or more rules in a rule database relating to one or more respective validation sets. Each validation set includes one or more validation subtasks. Each score is compared to a respective threshold to determine if a level of risk according to the respective rule merits performing validation. The migration request is validated by one or more validation sets that correspond to the scores that exceed the respective threshold.

Abstract: Methods for migrating a virtual machine instance between devices include scoring a received migration request against one or more rules in a rule database relating to one or more respective validation sets. Each validation set includes one or more validation subtasks. Each score is compared to a respective threshold to determine if a level of risk according to the respective rule merits performing validation. The migration request is validated by one or more validation sets that correspond to the scores that exceed the respective threshold.

Abstract: A method for prioritizing First Failure Data Capture (FFDC) data for analysis. The method comprising identifying FFDC data in response to receiving an error message, the FFDC data comprising at least one of: a computer system event which may lead to system failure; a computer system event led to system failure; a computer system condition which may lead to system failure; a computer system condition which led to system failure; determining a relevancy rank for each data value in the FFDC data based on the error message received and a probability a given data value is relevant in resolving a cause of the error message; and sending, in order of relevancy, the data values of the FFDC data to a second server.

Abstract: One embodiment provides a method for allocating assignments based on workload and physiological stress. The method comprises maintaining a queue of logged-in service representatives, and, in response to receiving a service request for a new assignment, scanning the queue to determine a subset of potential service representatives to assign the new assignment to. A corresponding workload level of each service representative of the subset is the smallest among all service representatives of the queue. For each service representative of the subset, a corresponding anxiety level is determined based on physiological sensor data captured by a wearable tracking device attached to the service representative. The new assignment is assigned to a service representative of the subset, the service representative having a corresponding anxiety level that is the smallest among all service representatives of the subset.

Abstract: A method for enhanced restart of a core dumping application is provided. The method includes stopping a plurality of threads in an address space, except for the thread performing the core dump. Computational segments are remapped to client segments. Each open file descriptor in the address space is closed. The application is terminated and the client segments are flushed to external storage.

Abstract: A method, system, and program product is provided for reducing redundant validations for live operating system migration. A control point caches at least one validation inventory that is associated with a logical partition (LPAR). The control point sends the cached validation inventory to a virtualization manager upon an activation of the LPAR associated with the validation inventory. The control point invalidates the cached validation inventory upon notification from the virtualization manager that the validation inventory is changed and is no longer valid. The control point re-validates the validation inventory.

Abstract: A method, system, and program product is provided for reducing redundant validations for live operating system migration. A control point caches at least one validation inventory that is associated with a logical partition (LPAR). The control point sends the cached validation inventory to a virtualization manager upon an activation of the LPAR associated with the validation inventory. The control point invalidates the cached validation inventory upon notification from the virtualization manager that the validation inventory is changed and is no longer valid. The control point re-validates the validation inventory.

Abstract: Multipath I/O in a computer system includes: receiving asynchronously, for a single I/O operation by a memory controller from a plurality of I/O adapters, a request to access a memory page, where each request to access the memory page includes an adapter-specific tag; and for each request received by the memory controller: determining, by the memory controller, whether an adapter-specific tag has been assigned to the memory page; if an adapter-specific tag has not been assigned to the memory page: assigning, by the memory controller, the received adapter-specific tag to the memory page; and allowing, by the memory controller, access to the memory page; and if an adapter-specific tag has been assigned to the memory page, granting access to the memory page only when the received adapter-specific tag is the adapter-specific tag assigned to the memory page.

Abstract: A method for enhanced restart of a core dumping application is provided. The method includes stopping a plurality of threads in an address space, except for the thread performing the core dump. Computational segments are remapped to client segments. Each open file descriptor in the address space is closed. The application is terminated and the client segments are flushed to external storage.

Abstract: An approach is provided for migrating a live instance of a virtual machine from a source computer system to a target computer system. The approach operates by creating a consistent snap shot image of an operating system environment that is running the live instance of the virtual machine on the source computer system. A test virtual machine container is created based on an actual virtual machine container that corresponds to the live instance of the virtual machine. Based on the snap shot image of the operating system environment, a test virtual machine is created in the test virtual machine container. The generated test virtual machine is tested with a migration of the live instance of the virtual machine being performed in response to a successful test of the test virtual machine. The migration is aborted in response to an unsuccessful test of the test virtual machine.

Abstract: A method for enhanced restart of a core dumping application is provided. The method includes stopping a plurality of threads in an address space, except for the thread performing the core dump. Computational segments are remapped to client segments. Each open file descriptor in the address space is closed. The application is terminated and the client segments are flushed to external storage.

Abstract: A computer program product for prioritizing First Failure Data Capture (FFDC) data for analysis. A processor configured to: identify, by the processor, FFDC data in response to receiving an error message, the FFDC data comprising at least one of: a computer system event which may lead to system failure; a computer system event led to system failure; a computer system condition which may lead to system failure; a computer system condition which led to system failure; determine, by the processor, a relevancy rank for each data value in the FFDC data based on the error message received and a probability a given data value is relevant in resolving a cause of the error message; and send, by the processor, in order of relevancy, the data values of the FFDC data to a second server.

Abstract: One embodiment provides a method for allocating assignments based on workload and physiological stress. The method comprises maintaining a queue of logged-in service representatives, and, in response to receiving a service request for a new assignment, scanning the queue to determine a subset of potential service representatives to assign the new assignment to. A corresponding workload level of each service representative of the subset is the smallest among all service representatives of the queue. For each service representative of the subset, a corresponding anxiety level is determined based on physiological sensor data captured by a wearable tracking device attached to the service representative. The new assignment is assigned to a service representative of the subset, the service representative having a corresponding anxiety level that is the smallest among all service representatives of the subset.

Abstract: A method for enhanced restart of a core dumping application is provided. The method includes stopping a plurality of threads in an address space, except for the thread performing the core dump. Computational segments are remapped to client segments. Each open file descriptor in the address space is closed. The application is terminated and the client segments are flushed to external storage.

Abstract: A method for enhanced restart of a core dumping application is provided. The method includes stopping a plurality of threads in an address space, except for the thread performing the core dump. Computational segments are remapped to client segments. Each open file descriptor in the address space is closed. The application is terminated and the client segments are flushed to external storage.

Abstract: A computer system, method, and program product for dynamically allocating storage bandwidth in an exchange is provided. The method provided creates, by an exchange server, a total inventory of resources for auction, whereby the total inventory of resources for auction includes resources from at least one provider. The total inventory of resources for auction is broadcast to at least one bidder. The amount of a resource is awarded to the at least one bidder at an end of a bidding interval, based on a bid provided by the at least one bidder during the bidding interval, where the amount of the resource is a portion of the total inventory of resources for auction.

Abstract: A computer system, method, and program product for dynamically allocating storage bandwidth in an exchange is provided. The method provided creates, by an exchange server, a total inventory of resources for auction, whereby the total inventory of resources for auction includes resources from at least one provider. The total inventory of resources for auction is broadcast to at least one bidder. The amount of a resource is awarded to the at least one bidder at an end of a bidding interval, based on a bid provided by the at least one bidder during the bidding interval, where the amount of the resource is a portion of the total inventory of resources for auction.