International Business Machines Corporation

Kenneth Glenn Rothwell

Jeffrey Mark Nick

David Arlen Elko

David Harold Surman

Jeffrey Alan Frey

Michael D Swanson

Georgette L Kurdt

Jessie Yu

Michael J Jordan

Kelly B Pushong

Gary M King

Catherine Mary Moxey

William Charles Neiman

Neil Alan Johnson

A computer-implemented method for asynchronous duplexing between two computing devices includes obtaining a task for execution by a first computing device and executing the task. A first computing task completion identifier is assigned upon execution of the task. The task with the assigned first computing task completion identifier is transferred to a second computing device and executed. A second computing task completion identifier is assigned upon execution of the task. The first computing task completion identifier and the second computing task identifier are logged into a task management log for facilitating the recovery of the first computing device by comparing the first computing task completion identifier and the second computing task identifier for identifying tasks executed by the first computing device and requiring execution by the second computing device.

Asynchronous duplexing

Heuristics are employed to dynamically determine whether a given request is to be driven synchronously or asynchronously. The average synchronous service time associated with previously processed requests is monitored and used, in real-time, along with other information, to determine whether the given request is to be driven synchronously or asynchronously.

Dynamically determining whether to process requests synchronously or asynchronously

A dumping service facility for data processing systems, including single systems, multisystems and shared facilities. Information, such as control information, is captured and a storage dump is created. During the capturing process, the information is serialized such that mainline commands (i.e., commands other than dump commands) are not allowed to access the information thereby possibly destroying the information. The information is stored within the storage dump in such a manner that programs can understand the information. That is, the storage dump contains a logical representation of the information being captured. Subsequent to capturing the information, serialization is released and mainline commands can once again access the information.

Methods and systems for creating a storage dump within a coupling

Dynamically assigning a dump space in a shared data facility to receive

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Kenneth Glenn Rothwell