International Business Machines Corporation

Tony Leung

Todd Charles Sorenson

Larry Juarez

Matthew D Carson

Stephen Andrew Brodsky

Herve G P Andre

Rashmi Chandra

Clint Alan Hardy

Paul Arnold Ostler

Sonali Surange

Zeus Orion Courtois

Trung Ngoc Nguyen

Brian Anthony Rinaldi

Enrique Q Garcia

Gary William Batchelor

Anshul Dawra

Michael George Burke

Rebecca Braun Nin

Randall William Horman

Azadeh Ahadian

Jay T Kirch

Igor Peshansky

Vijay R Bommireddipalli

Reiner Kraft

Eugene Jon Shekita

Marcus Felipe Fontoura

Maryela Evelin Weihrauch

Sridhar Rajagopalan

Jacob Lee Sheppard

Andreas Neumann

Jason Yeong Zien

Runping Qi

John A McPherson, Jr

Tom William Jacopi

Michael Yiupun Kwong

Igor Popov

Loic Raymond Robert Julien

Lawrence E Dunnell

Glynis G Dsouza

Provided are a computer program product, system, and method for a computer program product, system, and method for determining an availability score based on available resources of different resource types in a distributed computing environment of storage servers to determine whether to perform a failure operation for one of the storage servers. A health status monitor program deployed in the storage servers performs: maintaining information indicating availability of a plurality of storage server resources for a plurality of resource types; calculating an availability score as a function of a number of available resources of the resource types; and transmitting information on the availability score to a management program. The management program uses the transmitted information to determine whether to migrate services from the storage server from which the availability score is received to at least one of the other storage servers in the distributed computing environment.

Determining an availability score based on available resources at a first server to determine whether to direct processing from a first server to a second server

Determining an availability score based on available resources of different resource types in a cloud computing environment of storage servers providing cloud services to customers in the cloud computing environment to determine whether to perform a failure operation for one of the storage servers

In one aspect, multiple data path error collection is provided in a storage management system. In one embodiment, an error condition in a main data path between the storage controller and at least one of a host and a storage unit is detected, and in response, a sequence of error data collection operations to collect error data through a main path is initiated. In response to a failure to collect error data at a level of the sequential error data collection operations, error data is collected through an alternate data path as a function of the error data collection level at which the failure occurred. Other aspects are described.

Multiple path error data collection in a storage management system

According to one embodiment of the present invention, a system enables control of database applications. The system comprises a computer system including a database application to provide access to a database system, and at least one processor. The computer system requests retrieval of application specific property information for the database application from a data repository, and applies the retrieved application specific property information to the database application to control operation of the database application. Embodiments of the present invention further include a method and computer program product for controlling database applications in substantially the same manner described above.

Method and system for centralized control of database applications

Provided are techniques for invoking with a processor executing on a computer a source code parser to obtain source information that includes a first location of an Application Programming Interface (API) call and parameters of the API call in source code of a client application, where the parameters the API call do not include query text for a query that is to be used to access a database; examining a stack trace to determine a second location of the API call in the stack trace; and deriving the query of the API call and a third location of the query in the source code by identifying the query in the stack trace at the location of the API call in the stack trace.

Correlating queries issued by applications with their source lines and analyzing applications for problem determination and where used analysis

A method for reducing stress on a RAID under rebuild is disclosed herein. In one embodiment, such a method includes performing the following actions while the RAID is undergoing a rebuild process: (1) redirect writes intended for the RAID to a temporary storage area located on a same primary storage system as the RAID, and (2) redirect reads intended for the RAID to a secondary storage system configured to store a copy of data in the RAID. The method is further configured to perform the following actions upon completing the rebuild process: (3) update the rebuilt RAID to reflect writes made to the temporary storage area during the rebuild process, and (4) redirect reads and writes to the rebuilt RAID. A corresponding system and computer program product are also disclosed.

Reducing stress on RAIDS under rebuild

Provided are a computer program product, system, and method for determining an availability score based on available resources of different resource types in a storage system to determine whether to perform a failure operation for the storage system. Information is maintained indicating availability of a plurality of storage system resources for a plurality of resource types. An availability score is calculated as a function of a number of available resources of the resource types. Information on the availability score is transmitted to a failure manager. The failure manager uses the transmitted availability information to determine whether to initiate a storage system failure mode for the storage system.

Determining an availability score based on available resources of different resource types in a storage system to determine whether to perform a failure operation for the storage system

Determining an availability score based on available resources of different resource types in a distributed computing environment of storage servers to determine whether to perform a failure operation for one of the storage servers

A system and method for connection of an application program to its corresponding database in a relational database system environment. Rather than embedding connection configuration information or properties in an application program, connection configurations are stored in a connection configuration repository. The connection configuration repository is likewise stored in a database within the relational database system environment. The connection configuration information stored in the configuration repository may be updated, revised, deleted or assembled into groups/subgroups, without affecting the application programs.

Common connection definitions for database clients

A technique is disclosed for identifying impact of database changes on an application. Given a proposed database change, affected source code is identified that is affected by the proposed database change. References to the affected source code are created and organized into a hierarchy. A user can ascertain the extent of the impact by viewing the hierarchy and by using the hierarchy to access and view the affected source code in a visually distinct manner.

Identifying impact of database changes on an application

Disclosed is a technique for building an index in which global analysis computations and index creation are pipelined, wherein the global analysis computations share intermediate results.

Pipelined architecture for global analysis and index building

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San Jose, CA, United States of America

Tony Leung