The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2019
Filed:
Oct. 30, 2015
Sap SE, Walldorf, DE;
Erwin Burkhardt, Walldorf, DE;
Martin Hartig, Speyer, DE;
Christoph Luettge, Muehltal, DE;
Heiko Konrad, Hockenheim, DE;
Christian Lutter, Wiesloch, DE;
Martin Mayer, Heidelberg, DE;
Steffen Meissner, Heidelberg, DE;
Matthias Mittelstein, Hamburg, DE;
Juergen Specht, Gerabronn, DE;
Volker Driesen, Heidelberg, DE;
SAP SE, Walldorf, DE;
Abstract
A zero downtime upgrade procedure is initiated that upgrades a first version of software executing on a source system comprising at least one source server to a second version of software executing on a target system comprising at least one target server. The source system initially starts operating in a read-write mode. Thereafter, concurrent with the operation of the source system, operation of the target system is initiated in a read-only mode. Operations of the source system are then ceased by ramping down activities of the source system. Upon cessation of operation of the source system, operation of the target system is initiated in a read-write mode.