Applying the technique(s)

 

Apply the selected technique(s) in a test environment first, to evaluate not only the performance/scalability impact to a component, but also to determine how each change affects the surrounding components and the end-to-end infrastructure. A situation where improvements in one component result in an increased (and unnoticed) load on another component is undesirable.

Figure 2-2 illustrates the typical relationship between the techniques and the key infrastructure components. By using this figure, the key techniques for each component can be identified.

In many cases, all techniques cannot be applied because one or more of the following is true:

<
1. Investing in the techniques, even if it would prove helpful, is not affordable. <
2. There is no perceived need to scale as much as the techniques will allow. <
3. Cost/benefit analysis shows that the technique will not result in a reasonable payback.

Therefore, there must be a process for applying these techniques in different situations so that the best return is achieved. This mapping is a starting point and shows the components to focus on first, based on application workload.

Figure 2-2 Scaling techniques applied to components

  Prev | Home | Next

 

WebSphere is a trademark of the IBM Corporation in the United States, other countries, or both.

 

IBM is a trademark of the IBM Corporation in the United States, other countries, or both.