International Business Machines Corporation

Diane Lacey Knipfer

Priti Bavaria

Douglas Michael Boecker

Lynn Allen McMahon

Charlotte B Metzger

Srinivas Kolluri

Gregory Michael Nordstrom

David Otto Lewis

Andrew J Geissler

Gary Dean Anderson

Michael Joseph Corrigan

Neil Clair Berglund

David Alan Bailey

Thomas Joseph Warne

Paul Henry Prahl, Jr

Peter Rudolf Keller

James E Bahr

A set of data structures defines resource relationships and locations for a set of resources to form defined resource relationships and defined locations for the set of resources. A receiver obtains, from an unsecure device, replaceable unit data and characterization data for a current resource in the set of resources. A writer merges obtained replaceable unit data for a current resource with obtained characterization data for the current resource for each resource of the set of resources to form a set of data files.

Obtaining and storing replaceable resource information for a unique resource

Creating a device tree is provided. It is determined whether more than one version of a resource for a data processing system exists in a resource location code array table. In response to determining that more than one version of the resource for the data processing system does exist in the resource location code array table, it is determined which version of the resource was installed in the data processing system. A presence detection procedure is performed for the resource in the data processing system. It is determined whether the resource is present in the data processing system. In response to determining that the resource is present in the data processing system, an entry is created in a device tree for the resource based on the determined version of the resource. The device tree is cached in firmware.

Conditional inclusion of resources in a computer system configuration

Selectively recollecting vital product data during an initial program load at data processing system power on is provided. In response to receiving an input to power on a data processing system, a resource location code array table is accessed within a set of selected tables for the data processing system based on machine type. The selected set of tables is located in firmware within a service processor. An entry for a resource in the resource location code array table is read to determine whether the entry includes a no recollect tag. Then, in response to determining that the entry for the resource in the resource location code array table does include a no recollect tag, vital product data for the resource is not recollected during the initial program load.

Vital product data collection during pre-standby and system initial program load

In an illustrative embodiment, a data processing system for resource data management is provided. The data process system comprises a set of data structures defining resource relationships and locations for a set of resources to form defined resource relationships and defined locations for the set of resources, and a receiver capable of obtaining replaceable unit data and obtaining characterization data for a current resource in the set of resources to form obtained replaceable unit data and obtained characterization data for the current resource, wherein the obtained replaceable unit data is obtained from a secure device and the obtained characterization data is obtained from an unsecure device. The data processing system further comprises a writer capable of merging the obtained replaceable unit data for the current resource with the obtained characterization data for the current resource for each resource of the set of resources to form a set of data files, wherein each data file corresponds to a resource in the set of resources.

Storing resource information

A method for determining configuration information to be reported comprises accessing a table corresponding to a configuration resource associated with the configuration information, wherein the table comprises an entry for each hardware configuration definition to be built for the configuration resource, identifying a seed value in the table corresponding to the configuration resource, and modifying the seed value based on a result of processing each entry indicated by the table.

Hardware configuration information system, method, and computer program product

The present invention provides a method and computer program product for reading an encoded cable speed/length value contained within an interconnection cable to set the interconnection speed of two or more components connected by the interconnection cable within a computing environment. This method detects changes to the cable connections within the I/O fabric of the computing environment, and autonomically reconfigures the connected components to enable the interconnected devices to communicate at the maximum effective bandwidth, based on the length of the interconnection cables utilized.

Autonomic configuration of port speeds of components connected to an interconnection cable

Disclosed is a system, method, and program for determining the configuration of a computer system having a planar board, a planar bus, and attached planar devices. A read operation is performed on planar configuration memory indicating addresses for each planar device capable of being attached to the planar board. A read command is then sent to the address of each planar device indicated in the planar configuration memory to determine if each planar device is available. A configuration memory for each available planar device is read to determine configuration information and if there are addresses of attached devices accessible through the planar device. A read command is then sent to the address of each attached device indicated in the configuration memory of the planar device to determine configuration information for each attached device and if there are further attached devices accessible through the attached device. A read command is sent to the address of any attached device indicated in any configuration memory to determine configuration information and whether there are any further attached devices and accompanying configuration memories to consider.

Method, system, and program for determining system configuration

A computer program synchronization instruction is employed to synchronize multiple processing devices sharing main storage through a common interface. The processors execute the synchronization instruction in turn, and all except the final processor are forced into a temporary holdoff condition and execute no further computer program instructions. The final processor to execute the synchronization program becomes a master, releasing itself and the 'slave' devices simultaneously to resume executing instructions. In order to force contentions between processors, a selected delay may be entered into the instruction stream of at least one of the processing devices. The delay can be incremented each time the synchronization instruction is executed, if desired. The forced contentions permit a testing of various serialization mechanisms designed to resolve contentions.

Synchronization instruction for multiple processor network

In connection with an information processing network in which multiple processing devices have individual cache memories and also share a main storage memory, a process is disclosed for allocating multiple data operations or tasks for subsequent execution by the processing devices. A plurality of task dispatching elements (TDE) forming a task dispatching queue are scanned in an order of descending priority, for either a specific affinity to a selected one of the processing devices, or a general affinity to all of the processing devices. TDEs with specific affinity are assigned immediately if the selected processor is available, while TDEs of general affinity are reserved. TDEs with a specific affinity are bypassed if the selected processor is not available, or reserved if a predetermined bypass threshold has been reached. Following the primary scan a secondary scan, in an order of ascending priority, assigns any reserved tasks to the processing devices still available, without regard to processor affinity. Previously bypassed tasks can be assigned as well, in the event that any processor remains available. A further feature of the network is a means to reset the processor affinity of a selected task from the specific affinity to the general affinity. Resetting is accomplished through an assembly level instruction contained in the task, and either can be unconditional, with reset occurring whenever the task is executed on one of the processing devices, or can occur only upon the failure to meet a predetermined condition while the task is executing.

Growing community of inventors

Rochester, MN, United States of America

Diane Lacey Knipfer