Abstract
As described in Chap. 1, a private cloud is literally the deployment of cloud computing principles on your own premises and infrastructure. This is similar to use utility technologies but on your own power plant.
There are still good reasons why companies prefer to keep their mission critical SAP systems and sensitive data on their own premises. But they can still benefit from the cloud concept by adopting a private one. This chapter deals with the necessary infrastructure, discusses new developments like lossless Ethernet and converged networks as well as unified computing.
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Notes
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mySAPToolbag for Performance Tuning and Stress Testing, George Anderson, Prentice Hall, ISBN 0-13-144852-8.
- 2.
The SAP on AWE Operations Guide v1.5, (http://aws.amazon.com/sap) describes at page 21 the configuration of a hybrid TMS.
- 3.
The internal connections inside a CPU are isolated from each other by SiO2 layers of only a few μm, which results in a “parasitic capacitance”. With every clock impulse, electrons are moved to charge and discharge this capacitance, resulting in an energy proportional to C x U2 flowing into the device. This flow multiplied by the clock speed is the power dissipation which results in an equivalent heat dissipation.
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Published on http://www.saponwin.com
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Amazon didn’t publish the benchmark results, however the SAPS numbers for sizing can be found in SAP Note 1588667
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SAPNote 1612283 - Hardware Configuration Standards and Guidance.
- 8.
Statistical Analysis of Storage Subsystems in SAP Environments and development of a Application to determine the optimal size of such systems. Christoph Schelling, Master Thesis 2006.
- 9.
Analysis of resource consumption in virtual systems – Exemplified by the IO load of business applications; Robert Wierschke, Master Thesis 2009.
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Every active device on the path from source to destination is counted as a “hop”.
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In this sense the term loss-less does not consider that data can still be lost to transmission errors which is quite rare within a data center infrastructure.
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© 2013 Springer-Verlag Berlin Heidelberg
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Missbach, M., Stelzel, J., Gardiner, C., Anderson, G., Tempes, M. (2013). Private Cloud Infrastructures for SAP. In: SAP on the Cloud. Management for Professionals. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31211-3_8
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DOI: https://doi.org/10.1007/978-3-642-31211-3_8
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