International Business Machines Corporation

David Nevarez

Morgan Jeffrey Rosas

Veena Patwari

James Anthony Pafumi

Jacob Jason Rosales

Vasu Vallabhaneni

Greg Robert Mewhinney

George Francis Ramsay, Iii

Neal Richard Marion

Marcos A Villarreal

Alexander Medvedev

Debora Velarde

Ray W Anderson

Francisco Garcia

Bobbi A Brekke

A method utilizes cluster-awareness to effectively support a live partition mobility (LPM) event and provide recovery from node failure within a Virtual Input/Output (I/O) Server (VIOS) cluster. An LPM utility creates a monitoring thread on a first VIOS on initiation of a corresponding LPM event. The monitoring thread tracks a status of an LPM and records status information in the mobility table of a database. The LPM utility creates other monitoring threads on other VIOSes running on the (same) source server. If the first VIOS VIOS sustains one of multiple failures, the LPM utility provides notification to other functioning nodes/VIOSes. The LPM utility enables a functioning monitoring thread to update the LPM status. In particular, a last monitoring thread may perform cleanup/update operations within the database based on an indication that there are nodes on the first server that are in failed state.

Multiple node/virtual input/output (I/O) server (VIOS) failure recovery in clustered partition mobility

A mechanism for interfacing block storage devices is disclosed. The mechanism performs operations including receiving communications from an initiator at a block storage device interface, translating the received communications, transmitting the translated communications to a native storage device driver, forwarding the translated communication to a physical adapter, and controlling physical storage devices in response to the communications received from the initiator.

Block storage interface for virtual memory

A system and computer program product utilizes cluster-awareness to effectively support a live partition mobility (LPM) event and provide recovery from node failure within a Virtual Input/Output (I/O) Server (VIOS) cluster. An LPM utility creates a monitoring thread on a first VIOS on initiation of a corresponding LPM event. The monitoring thread tracks a status of an LPM and records status information in the mobility table of a database. The LPM utility creates other monitoring threads on other VIOSes running on the (same) source server. If the first VIOS sustains one of multiple failures, the LPM utility provides notification to other functioning nodes/VIOSes. The LPM utility enables a functioning monitoring thread to update the LPM status. In particular, a last monitoring thread may perform cleanup/update operations within the database based on an indication that there are nodes on the first server that are in failed state.

A mechanism is provided for sharing an application among multiple server systems. In one embodiment, the application is stored on a fast disk paging device. The paging device is in communication with each of a plurality of servers so that each server may be given access to the application. Virtual real memory (VRM) is allocated to a first virtual client of the first server. A portion of this VRM is allocated to the application. The application is executed by a virtual client of a first server. During execution a condition may occur that requires taking the first server off line. In that event, VRM is allocated to a second virtual client of a second server. A portion of this VRM is allocated to the application. The application is then executed by the second virtual client of the second server.

Application mobility using virtual real memory services

A method for storing and retrieving blocks of data having different dimensions is disclosed. The method can include receiving a first data segment to be stored in a block storage device where the first data segment has an address. The method can also include determining if the first data segment conforms to a standard dimension and sorting the first data segment according to the destination address if it does not have a standard dimension. The method can further include placing a non-standard data segment into a unfilled block allocation and placing a second non-standard data segment into the unfilled block allocation when the second data segment has the destination identifier. Other embodiments are also disclosed.

Storing and retrieving blocks of data having different dimensions in/from block storage devices

A method for distributed computing utilizing virtual memory is disclosed. The method can include identifying a first node to process an application, identifying paging space accessible to the first node, identifying a second node to share paged data with the first node, and transacting the paged data between the first node and the identified paging space. Thus, application processing results from the first node can be stored in paging space and a second node can retrieve the first result from the paging space such that the paging space can be shared between nodes. Other embodiments are also disclosed.

Distributed computing utilizing virtual memory having a shared paging space

Arrangements for storing and retrieving blocks of data having different dimensions

A method for sharing memory locations in a virtual memory system is disclosed. The method can include processing instructions and accessing data utilizing a virtual memory system with a paging device that is accessible by multiple clients. The method can also include configuring a first client to access the paging device, configuring a second client to access the paging device and allowing the first and second client to access the paging device via a virtual input output server. Other embodiments are also disclosed.

Data sharing utilizing virtual memory having a shared paging space

A system, method and computer-readable medium for adapting command line output message streams in a virtualized command line interface (CLI) environment. In accordance with the method of the present invention, a virtualized CLI command is entered and executed. The virtualized CLI command encapsulates a guest operating system command having an associated standard output message. In response to executing the virtualized CLI command, the standard output message is piped to an output message file. Within the standard output message file, a structured array is used to search the standard output message for matches between strings within the standard output message and one or more specified message strings identified in the structured array. In response to finding a match between the specified message strings and the strings within the standard output message, the specified message string within the standard output message is replaced with a replacement message string.

Adapting command line interface messaging in a virtual operating system environment

The present invention provides a computer that includes a processor part having a top side and a bottom side. A keyboard part, having a key side and back side, is pivotally connected to the processor part. The computer of the present invention includes a display part having a screen side and a back side. In some embodiments, the display part is pivotally connected to the processor part. In other embodiments, the display part is pivotally connected keyboard part. The keyboard part is configured to lie against the processor part in a closed position, with the key side of the keyboard part facing away from the top side of the processor part. The display part is configured to lie against and cover the keyboard part in the closed position, with the screen side of the display part facing toward the key side of the keyboard part. The display part is movable from the closed position to a first open position in which the keyboard part remains lying against the processor part with the key side of the keyboard part exposed. The keyboard part and the display part are movable to a second open position in which the display part lies against the processor part and the display part lies against the processor part.

Growing community of inventors

Austin, TX, United States of America

David Nevarez