Method of operating a shared nothing cluster system

• Main Authors: Mueller-Wicke, Dominic, Schreiber, Thomas, Bolik, Christian, Haustein, Nils
• Format: Patent
• Language: English
• Published: 24.04.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

Operating a shared nothing cluster system (SNCS) in order to perform a backup of a data element. The SNCS includes at least a first and a second storage node connected via a first network of the SNCS. The first and second storage nodes are configured to store a first set and a second set of blocks, respectively, in which the first and second set of blocks form a single data element. A backup server is connected to the first and second storage nodes, and the backup server includes a backup information table. The first and second storage nodes are configured to act as backup clients in a client-server configuration involving the backup server, upon receiving at the first and the second storage nodes a request to backup the data element. For each node of the first and second storage nodes, the node identifies one or more block sequences of consecutive blocks in a set of blocks of the data element stored in the node. The node sends the identified one or more block sequences to the backup server, and generates backup information.