The correct answer is: A. requires detailed system performance information.
Capacity planning is the process of determining the future resource requirements of a system. It is a critical part of ensuring that a system can meet the demands of its users. Capacity planning requires detailed system performance information in order to accurately predict future needs.
Option B is incorrect because capacity planning is not independent of the operating system. The operating system plays a critical role in determining the performance of a system. Capacity planning must take into account the specific features and capabilities of the operating system.
Option C is incorrect because capacity planning does depend on the monitoring tools available. The monitoring tools provide the data that is used to predict future needs. Capacity planning must use the most accurate and up-to-date data available.
Option D is incorrect because capacity planning is needed in all installations, regardless of size. Even small systems can experience performance problems if they are not properly planned. Capacity planning can help to avoid these problems
by ensuring that the system has the resources it needs to meet the demands of its users.Option E is incorrect because capacity planning is a critical part of ensuring that a system can meet the demands of its users. It is not a luxury that can be ignored, even in small installations.