International Business Machines Corporation

Paul Ming Chen

Michael George Polan

Andrew Neil Trossman

Paul Darius Vytas

Alex Kwok Kee Tsui

Geyu Li

Alex Luo

Philip Kurowski

Jerry Waikit Tsui

A method of managing an active-passive topology in a distributed computing environment comprising a plurality of systems each having a token manager connected to a common resource accessible by all of the systems comprising a token pool of tokens. The token manager locks the token pool and checks the token pool for an available token. When a token is available, the token manager leases the available token and unlocks the token pool. The token manager designates the system as an active system and alters an owner of the token to the active system. The token manager of the active system updates a leasing time of the token leased during use of the token by the active system and in response to an active system deactivation or stoppage, the token manager locks the token pool to return the token to the token pool and unlocking the token pool.

Token-based lightweight approach to manage the active-passive system topology in a distributed computing environment

Posture loop

Access of data center resources is provided by the present invention using stateless and stateful Web services. For stateless Web services, the present invention provides an invoker API that allows a client to invoke a specific resource and perform an operation on the resource. For stateful Web services, the present invention provides a Web Service Definition file that defines attributes and operations for data center resources. The client may access an instance of a Web service resource once an endpoint reference is obtained from the server. Since the resource instance is persistent, the client may invoke data center operations and manipulate the resource attributes accordingly.

managing data center using web services

Balancing exerciser

A method, apparatus, and computer program product for selectively and programmatically provisioning resources on a computer network. A role-based access manager discovers one or more network resources. A provisioning manager then provisions the discovered network resources.

Provisioning of resources in a computer network

A web service interface defined for a billing service, comprising a plurality of application programming interfaces, where each application programming interface is associated with a billing function provided by the billing service, where each of the application programming interfaces can be implemented such that the billing function associated therewith is performed after a web service invocation that commands performance of that billing function is received by the web service interface. The web service interface is used to provide the billing service as a web service to computing applications in a distributed network environment.

Web service interfaces used in providing a billing service

Inclination adjusting device for treadmill

Growing community of inventors

Markhan, Canada

Paul Ming Chen