International Business Machines Corporation

Steven Bruce Jones

Jeffrey Mark Nick

David Harold Surman

David Arlen Elko

Kelly B Pushong

Michael J Jordan

Georgette L Kurdt

Inderpal Singh Narang

James Zu-Chia Teng

Steven N Goss

Jeffrey William Josten

Scott B Tuttle

Thomas C Shaw

Mark A Brooks

Donald W Schmidt

Anthony Thomas Sofia

Dennis J Dahlen

Douglas W Westcott

Daniel V Rosa

Ruth A Allen

Thomas Wasik

David A Stilwell

Scott Ballentine

Bonnie Michele Ordonez

Brian D Keuling

Chitta L Rao

Michael Burrill Phillips

Nicholas C Matasakis

A method for matching a first list of pattern strings to a second list of data strings, the first list including zero or more wildcards, may include identifying, for each pattern string in the first list, a data string in the second list corresponding with a respective one of the pattern strings. The method may further include determining whether the first list matches the second list by determining, for each pattern string in the first list, whether a respective one of the strings includes a wildcard for matching zero or more characters of a data string corresponding with the pattern string, and further performing a wildcard string comparison between the pattern string and the data string corresponding with the pattern string. The method may additionally include providing a data value indicating whether the first list matches the second list.

Matching an ordered set of strings containing wild cards

Systems, methods, and computer program products for job scheduling are disclosed. An exemplary computer-implemented method includes receiving a job in a job scheduling system. At least part of the job is transmitted to a job reader. An indication of one or more functions required for performing the job is received from the job reader. A first computing device is selected from among a plurality of computing devices, where the selection is based, at least in part, on whether the first computing device supports the functions required for performing the job.

Job scheduling in a system of multi-level computers

A method for creating a date window for record selection. The method includes defining a set of parameters for calculating a date window for record selection, automatically detecting a current date, receiving input values corresponding to the defined set of parameters, from a user via a user interface, calculating and generating the date window based on the input values and the current date detected, and providing the generated date window and data records associated with the generated date window to the user via the user interface.

Creation of date window for record selection

A queuing module is configured to determine the presence of at least one shared request in a request queue, and in the event at least one shared request is determined to be present in the queue; determine the presence of a waiting exclusive request located in the queue after the at least one shared request, and in the event a waiting exclusive request is determined to be located in the queue after the at least one shared request: determine whether grouping a new shared request with the at least one shared request violates a deferral limit of the waiting exclusive request; and, in the event grouping the new shared request with the at least one shared request does not violate the deferral limit of the waiting exclusive request, group the new shared request with the at least one shared request.

Shared request grouping in a computing system

A coupling facility is coupled to one or more other coupling facilities via one or more peer links. The coupling of the facilities enables various functions to be supported, including the duplexing of structures of the coupling facilities. Duplexing is performed on a structure basis, and thus, a coupling facility may include duplexed structures, as well as non-duplexed or simplexed structures.

Providing at least one peer connection between a plurality of coupling facilities to couple the plurality of coupling facilities

Test tool logic and testing methods are provided for facilitating testing a duplexed computer function, such as a duplexed coupling facility. The test tool allows a testcase written for a first environment to be automatically driven in a second environment, thereby facilitating testing of a function of the second environment. Other aspects include logic for intercepting a system event by a test tool to facilitate testing of system-managed event processing, and for adjusting a display characteristic of one or more messages to be displayed by the test tool based on message type. Further, logic for propagating an environmental error indication and for facilitating processing a wait state are also provided, as are several new test tool verbs and macros.

Test tool and methods for testing a system-managed duplexed structure

Test tool and methods for facilitating testing of duplexed computer functions

Synchronizing processing of commands invoked against duplexed coupling facility structures

Coupling facility store-in cache structures are duplexed in order to improve data availability. That is, once duplexing is established, selective data is written to both a primary structure instance and a secondary structure instance. Thus, if one of the structure instances fails, then the other structure instance is used in order to prevent data from being lost. Duplexing can be started manually and/or automatically by the operating system. Further, a structure may be removed from duplex mode and enter simplex mode, if duplexing is not desired.

Method, system and program products for providing user-managed duplexing of coupling facility cache structures

Castout processing for duplexed data structures. A selective data item is written from a primary instance of a data structure to at least one storage medium. A determination is made as to whether the selective data item can be deleted from a secondary instance of the data structure. If the selective data item can be deleted, it is deleted from the secondary instance.

Castout processing for duplexed cache structures

Rebuilding of storage structures within a shared storage processor of a computing environment. A rebuild of a storage structure, which is owned by an exploiter of the storage structure, is initiated. Thereafter, the storage structure is rebuilt via an operating system of the computing environment. The operating system is distinct from the exploiter owning the storage structure and lacks knowledge of the contents of the storage structure.

System-managed rebuild of coupling facility structures

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Poughkeepsie, NY, United States of America

Steven Bruce Jones