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:
Jul. 04, 2017
Filed:
Jan. 06, 2016
International Business Machines Corporation, Armonk, NY (US);
Manish Gupta, New Delhi, IN;
Rajeev Puri, Huntersville, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and associated system for patching virtual machines in L redundancy groups in accordance with a patching schedule. The patching schedule is generated by scheduling, in W sequential time windows, P patches applicable to the virtual machines. Each redundancy group includes virtual machines and independently belongs to a respective software application x of X software applications, wherein P≧1, L≧1, R≧1, and X≧1. The L redundancy groups collectively comprise at least 2 virtual machines. The scheduling determines xfor T tuples (w, m, k) defined by (w=1, . . . , W) and (m=1, . . . , L) and (k=1, . . . , R), by maximizing an objective function subject to constraints. Determining xincludes setting x=1 if virtual machine k in redundancy group m is to be patched in time window w or setting x=0 otherwise.