International Business Machines Corporation

James Arthur Lindeman

Danny Soroker

Lisa M Frankel

Gary Lee Ruzek

Steven Mark Thurber

Gregory Michael Nordstrom

David Anthony Larson

Canturk Isci

Joefon Jann

John Ronald Oberly, Iii

Vasanth Bala

Darrell Christopher Reimer

Todd W Mummert

Sean Thomas Brownlow

John Thomas O'Quin, Ii

Chris Alan Schwendiman

Timothy Joseph Torzewski

Christopher Harry Austen

Stephen Dale Linam

Ching-Farn Eric Wu

Bradley Ryan Harrington

Orlando O'Neill

Ramanjaneva Sarma Burugula

Kaoutar El Maghroaui

Muhamed Sadic

An example operation may include one or more of authenticating a user, by a first system node, based on a first set of user credentials, computing, by the first system node, a second set of user credentials for a second system node, determining, by the first system node, if the second system node has a user with the second set of the user credentials, and responsive to the second system node not having the user with second set of the user credentials, deleting, by the first system node, an existing user of the second system node.

Dynamic management of user identifications

An example operation may include one or more of authenticating a user, by a first system node, based on a first set of user credentials, computing, by the first system node, a second set of user credentials for a second system node, testing the second system node, by the first system node, to determine if the second system node has a user with the second set of the user credentials, and responsive to the second system node not having the user with the second set of the user credentials, creating a user with the second set of the user credentials.

Aspects of the present invention provide a solution for passively monitoring a computer system. In an embodiment, a read-only target is created based on the configuration of the virtual server disk used by the virtual server to access the storage associated therewith. This read-only target can be used to expose the virtual server disk for access by a monitoring crawler. Using the read-only target, a monitoring crawler can acquire a set of features regarding the virtual server from the virtual server disk. One or more of this set of features can be analyzed to perform passive monitoring of the virtual server.

Passive monitoring of virtual systems using agent-less, near-real-time indexing

An apparatus, program product and method dynamically bind Message Signaled Interrupt (MSI) resources shared by a plurality of clients to an interrupt facility in an MSI-capable computer. In addition, management of such bindings may be implemented using a platform independent interrupt manager capable of managing multiple MSI bindings between MSI resources to an interrupt facility, and interfaced with an underlying hardware platform of a computer through platform-specific encapsulation program code.

Message signaled interrupt management for a computer input/output fabric incorporating platform independent interrupt manager

A method, system, and computer usable program product for identifying a defective adapter are provided in the illustrative embodiments. A configuration process of the adapter is initiated, the adapter being coupled with a slot in a data processing system. An indication of the configuration process is activated. A determination is made whether the configuration has completed successfully. The indication is allowed to remain activated responsive to the configuration not completing successfully. The activated indication identifies the defective adapter.

Identifying a defective adapter

A system, method, and computer-usable medium for probing hypervisor tasks in an asynchronous environment. According to an embodiment of the invention, the partition firmware sends a request for data to the hypervisor. When the hypervisor receives the request for data, the hypervisor returns a taskID that identifies the task allocated to handle the request. Partition firmware records the taskID and a timestamp, which indicates the time in which the hypervisor received the request. A timer is set to measure the amount of time elapsed since the task ID was received by a requesting partition firmware. If the hypervisor has not provided the partition firmware with the requested data after a predetermined time period measured by the timer has elapsed, the partition firmware inquires about the status of the task associated with the taskID. If the task is still running, the partition firmware returns control of the partition to the operating system.

System and method for probing hypervisor tasks in an asynchronous environment

A method (and structure) of operating an operating system (OS) on a computer. When a failure of the OS is detected, the computer automatically performs a diagnosis of the OS failure. The computer also attempts to automatically repair/recover the failed OS, based on the diagnosis, without requiring a reboot.

Automated transition to a recovery kernel via firmware-assisted-dump flows providing automated operating system diagnosis and repair

A system for caching peripheral component interconnect device data. In response to probing a peripheral component interconnect device, peripheral component interconnect device data is discovered. The discovered peripheral component interconnect device data is cached and then configured to enable the peripheral component interconnect device to execute.

Method and system for caching peripheral component interconnect device expansion read only memory data

A method, apparatus and computer instructions for handling exception vectors by firmware. An exception vector is identified to form an identified exception vector when control is passed from an operating system to the firmware. The identified exception vector is saved to form a saved exception vector. The identified exception vector is then replaced with a substitute vector; and the saved exception vector is restored when control is returned to the operating system to form a restored exception vector. At that point, the restored exception vector is again used to perform error and debugging processes.

Method and apparatus for transparently sharing an exception vector between firmware and an operating system

A method, apparatus, and computer instructions for providing device information to an operating system. A first instance of an open firmware is loaded. Device information is generated for devices in the data processing system using the first instance of the open firmware. An operating system is loaded for the data processing system using the open firmware. A second instance of the open firmware is loaded. The second instance of the open firmware is enabled to provide device information in response to a request from the operating system during runtime operation of the operating system.

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Austin, TX, United States of America

James Arthur Lindeman