International Business Machines Corporation

Ralf Eberhard

Frank Bernhard Schmuck

Erik Rueger

Rolf Schaefer

Simon Lorenz

Manfred Haubrich

Ulf Troppens

Christof Schmitt

A computer-implemented method according to one embodiment includes identifying one or more accessible server nodes within a plurality of nodes of a failed clustered system, retrieving a plurality of fragments of configuration data from the one or more accessible server nodes, and constructing a backup state for the failed clustered system, utilizing the plurality of fragments of the configuration data.

Recovering a failed clustered system using configuration data fragments

A storage system in a clustered system may receive a first input/output (I/O) request. The storage system may include one or more storage nodes. Each of the one or more storage nodes may have a copy of a particular object stored thereon. The storage system may execute the first I/O request. Executing the first I/O request may modify data of a first object in a first storage node. The first object may be a copy of the particular object. The storage system may transfer the modified data of the first object to a master storage node. The master storage node may include a master object update descriptor list.

Object synchronization in a clustered system

Embodiments for using an electronic billboard in an Internet of Things ('IoT') computing environment by a processor. A wireless communication link may be established between a user equipment (UE) and the electronic billboard. Currently displayed content may be temporarily interrupted with user-provided content uploaded from the UE to the electronic billboard according to one or more protocols.

Temporary use of an electronic billboard in an internet of things computing environment

Responsive to receiving an identification of a new state identifier associated with the state of an object within a file from a child node, a master node updates a current state identifier for the object to the new state identifier in the master node. Responsive to a predefined user specification indicating that the new state identifier is to be broadcast to each remaining child node of a subset of child nodes in a plurality of child nodes that have a copy of the object, the master node identifies the subset of child nodes in the plurality of child nodes that have a copy of the object in the master node. The master node then broadcasts the new state identifier to the subset of child nodes that have a copy of the object.

Growing community of inventors

Kelsterbach, Germany

Ralf Eberhard