Oct 28, 2013 - Various tools are used to perform the hardware sizing and the. Other standards such as SAPS although it is conceivable that there are some. SAP HARDWARE SIZING. It is used to measure/determine the hardware i.e, required for SAP Systems to be implemented. SAP provides QUICK SIZER Tool to calculate the Skeleton Model Sizing.

Sizing Methods of SAP System • 1. Www.sap-press.com 1 Sizing SAP® Systems Susanne Janssen, Ulrich Marquard Contents 1 Introduction... 3 Sizing Definition...

3 The Sizing Principle.. 3 Business Management and Technology 4 Goals of This Book.. 4 Target Group and Structure of the Book.... 5 Related Topics...

5 2 Sizing Methods... 7 2.1 Phases of Sizing Projects... 7 2.2 Methods for Initial Sizings..

8 Hardware Budget Sizings.. 8 Advanced Sizing...

10 Expert Sizing... 10 Standard Tools — Even for Experts. 11 Analyzing Customer Data.. 11 2.3 Sizings Based on Productive Customer Data. 12 Basic Analysis for All Production Sizings.... 13 Resizing... 13 Delta Sizing...

14 Upgrade Sizing... 15 Single-Instance Projects.. 15 2.4 Summary.... 15 3 Sizing Approaches... 17 3.1 Factors That Influence Sizing.. 17 3.2 Key Performance Indicators.. 18 3.3 Overview of Different Sizing Approaches....

20 Sizing by Users... 20 Advantages and Disadvantages of User-Based Sizing.. 21 Sizing by Throughput.. 22 Basic Considerations and Assumptions for Throughput Sizing.. 23 Advantages and Disadvantages of Throughput Sizing.. 23 Sizing by Reference Installations.

23 Sizing by Load Tests.. 24 Conclusion... 24 3.4 User and Throughput Sizing Models. 24 Calculating CPU Requirements. 24 Calculating Memory Requirements.

25 Calculating Disk Requirements. 26 Frontend Network Requirements. 27 Conclusion for These Approaches. 27 3.5 Conclusion.... 27 4 Sizing Tools.... 29 4.1 Rule of Thumb/Reality Check.. 29 Bottom-Up Method..

30 Top-Down Method.. 30 4.2 T-shirt Sizing.... 30 Categories... 31 Pros and Cons...

31 4.3 Sizing Formula.... 32 4.4 Offline Questionnaire... 33 4.5 Summary.... 33 5 Quick Sizer.... 35 5.1 Quick Sizer Projects... 36 Creating a Project..

36 Filling Out Sizing Questionnaires. 37 Determining the Sizing Result.

38 5.2 Functions.... 40 Initial Page... 41 Navigation Tree...

41 Header Bar... 41 • 2 ©Galileo Press 2007. All rights reserved. Contents Questionnaires... 43 Results Page... 45 5.3 Average and Peak Sizing... 48 5.4 Summary....

50 6 Performance Monitors and Traces. 51 6.1 Operating System Monitor.. 52 6.2 Database Monitor... 53 6.3 Application Monitor...

54 6.4 Single Record Statistics... 56 6.5 Performance Trace... 57 6.6 Summary.... 58 7 Sizing Verification... 59 7.1 Load Tests.... 59 Phase 0: Preparation..

59 Phase 1: Performing Individual Measurements... 60 Phase 2: Analyzing the Transaction Design in Single Mode.. 60 Phase 3: Load Tests in Multi-User Mode....

61 7.2 Verification via Support Services.. 63 SAP GoingLive Check.. 63 SAP EarlyWatch Check..

67 SAP GoingLive Functional Upgrade Check.... 68 7.3 Summary.... 69 8 Executing Sizing Projects.. 71 8.1 Before the Sizing Project Begins.. 71 Chicken or the Egg?.. 71 Project Scope... 71 Stakeholders in a Sizing Project.

72 Definition of a Sizing Project. 72 8.2 Project Team.... Ayan hd pic.

73 8.3 Methodical Procedure... 74 Step 1: Define Project Contents and Goals.... 74 Step 2: Determine Performance-Critical Processes... 75 Step 3: Decide on the Approaches and Methods to Be Used.. 75 Step 4: Define Milestones and Prepare a Detailed Schedule.. 76 Step 5: Acquire Information and Apply the Methods...

76 Step 6: Analyze First Results and Adapt the Methods... 77 Step 7: Consolidate the Results and Get Confirmation from Stakeholders. 77 8.4 Summary....