SYSTEMS, METHODS AND COMPUTER PROGRAM PRODUCTS FOR SUPPORTING TRANSFORMATION TO A SHARED ON-DEMAND INFRASTRUCTURE

• US 20090150895A1
• Filed: 12/10/2007
• Published: 06/11/2009
• Est. Priority Date: 12/10/2007
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Pullo, Raffaele
• Granted Patent: US 7,890,630 B2
• Time in Patent Office: Days
• US Class Current: 718/104
• CPC Class Codes: G06F 11/3409 for performance assessment
• CPC Class Codes: G06F 11/3452 Performance evaluation by statistical analysis
• CPC Class Codes: G06F 11/3476 Data logging G06F11/14, G06F11/2205 take precedence
• CPC Class Codes: G06F 11/3495 for systems
• CPC Class Codes: G06F 2201/88 Monitoring involving counting

Abstract

Systems, methods and computer program products for supporting transformation to a shared on-demand infrastructure. Exemplary embodiments include a method including identifying a CPU resource type (or, in general, other sharable resource) to analyze, calculating a number of servers in scope, Ns, collecting current resource usage data for systems in the scope, wherein the current resource data is provided by systems and performance management tools, identifying a Period P, counting a number of peaks (Np) in the Period, excluding adjacent spikes to each of the number of peaks, calculating an average of CPU usage, Um, which is generally provided by the usage collection tools, defining an amplitude Am, defining a value for % Ks, in the range of 0.2-0.3 (value suggested) and applying transformation formulas to obtain a minimum size of a resource pool, a size of a target environment and a resource saving.

Claims

1. In a computer system, a method for transformation to a shared on demand infrastructure, the method comprising:

identifying a sharable resource including at least one of a CPU resource type to analyze;

calculating a number of servers in scope, Ns;

collecting current resource usage data for systems in the scope, wherein the current resource data is provided by systems and performance management tools;

identifying a Period P;

counting a number of peaks, Np, in the Period, excluding adjacent spikes to each of the number of peaks;

calculating an average of CPU usage. Um, which is generally provided by the usage collection tools;

defining an amplitude Am;

defining a value for % Ks, in the range of 0.2-0.3; and

applying transformation formulas to obtain a minimum size of a resource pool, a size of a target environment and a resource saving.

2. The method as claimed in claim 1 wherein a transformation formula to calculate the minimum size of the resource pool is:

3. The method as claimed in claim 2 wherein a transformation formula to calculate the size of the target environment is:

4. The method as claimed in claim 3 wherein a transformation formula to calculate the resource saving is: