International Business Machines Corporation

Mark A Brooks

Jeffrey Mark Nick

David Harold Surman

David Arlen Elko

Ruth A Allen

Michael J Jordan

Georgette L Kurdt

Dennis J Dahlen

Douglas W Westcott

Kelly B Pushong

Wendell W Wilkinson

Steven Bruce Jones

Walter W Otto

Stephen C Warren

William Charles Neiman

Neil Shah

Steven N Goss

Catherine Mary Moxey

Chitta L Rao

Michael Burrill Phillips

A computer system includes a memory, the memory comprising a hardware boot parameter storage area; an operating system running on the computer system; and reboot logic configured to: store updated boot parameters for the operating system in the hardware boot parameter storage area in the memory; perform a reboot of the operating system with the updated boot parameters; determine whether the reboot of the operating system is successful, and, in the event the reboot of the operating system is successful, automatically propagate the updated boot parameters to a persistent boot parameter storage area.

Automatic update of persistent boot parameter storage

A method for automatically updating persistent boot parameter storage in a computer system includes storing updated boot parameters for an operating system in the computer system in a hardware boot parameter storage area in a memory of the computer system; performing a reboot of the operating system with the updated boot parameters; determining whether the reboot of the operating system is successful; and, in the event the reboot of the operating system is successful, automatically propagating the updated boot parameters from the hardware boot parameter storage area to a persistent boot parameter storage area.

A system and method for detection of and a policy directed resolution of signaling sympathy sickness. Embodiments include a system having a communication among the members, each member having a cross-system coupling facility (XCF), and a method of managing sympathy sickness, the method including detecting a sympathy sickness condition affecting at least one of the members, documenting the sympathy sickness condition and implementing a policy rule to resolve the sympathy sickness condition.

Methods, systems, and computer products for detection of and policy directed resolution of signaling sympathy sickness in a multisystem cluster

System-managed duplexing of coupling facility structures. A plurality of instances of coupling facility structures are maintained in a plurality of coupling facilities. Duplexing processing associated with the plurality of instances is managed by one or more operating systems, making many of the steps associated with duplexing transparent to the exploiters of the coupling facility structures. System-managed duplexing provides high availability for coupling facility structure data via a robust recovery mechanism (i.e., duplexing failover).

Managing processing associated with coupling facility Structures

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

System-managed duplexing of coupling facility structures

Storage structures of a shared storage processor of a computing environment are copied. A copy operation for a storage structure of the shared storage processor is initiated. Although the storage structure is owned by an exploiter of the storage structure, at least a portion of the contents of the storage structure is copied via an operating system of the computing environment. The at least a portion of the contents are copied from the storage structure to another storage structure of the computing environment. Both storage structures may be located within the same shared storage processor or within different shared storage processors.

Method, system and program products for copying coupling facility structures

Cache structures of a shared storage processor of a computing environment are copied. A copy operation for a cache structure of the shared storage processor is initiated. Although the cache structure is owned by an exploiter of the cache structure, one or more objects of the cache structure are copied via an operating system of the computing environment. The one or more objects are copied from the cache structure to another cache structure of the computing environment. Both cache structures may be located within the same shared storage processor or within different shared storage processors.

Method, system and program products for copying coupling facility cache structures

Lock structures of a shared storage processor of a computing environment are copied. A copy operation for a lock structure of the shared storage processor is initiated. Although the lock structure is owned by an exploiter of the lock structure, one or more objects of the lock structure are copied via an operating system of the computing environment. The one or more objects are copied from the lock structure to another lock structure of the computing environment. Both lock structures may be located within the same shared storage processor or within different shared storage processors.

Method, system and program products for copying coupling facility lock structures

List structures of a shared storage processor of a computing environment are copied. A copy operation for a list structure of the shared storage processor is initiated. Although the list structure is owned by an exploiter of the list structure, one or more objects of the list structure are copied via an operating system of the computing environment. The one or more objects are copied from the list structure to another list structure of the computing environment. Both list structures may be located within the same shared storage processor or within different shared storage processors.

Method, system and program products for copying coupling facility list 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.

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Gaylordsville, CT, United States of America

Mark A Brooks