Designing a Complex Windows Server 2008 Infrastructure
Autonomy vs. Isolation
When you first hear the words autonomy and isolation, they might strike you as nearly synonymous. In the non-IT world, autonomous describes something that is independent and functions of its own accord, and isolation describes something that has been set apart from the rest of any given group. However, when working with Windows Networking components and building an infrastructure, these terms have very distinct and important meanings.
In the world of MCITP Enterprise Administrator, autonomy means that a particular resource is administered, but not completely controlled by, one group. It basically means putting things together in a spot that?s independently operating. This means that if you have an autono- mous group of administrators, they have the rights and authority to operate on their own group of servers, or even their own domain. However, you will most likely have another group of administrators that will have authority over this group and the ability to delegate their authority (or even supercede it). In general, administrators strive for two types of autonomy when they create an administrative design: service autonomy and data autonomy.
Data autonomy is the result of creating an environment where particularly important pieces of data are placed in a location that can be overseen by administrators. Service autonomy, however, is the result of making sure part of service management is directly overseen by a particular group of administrators.Just keep in mind that in both data autonomy and service autonomy, a single group of administrators will almost always not be the only ones in charge.IsolationTHere’s something about the word isolation that seems to appeal to most administrators.
That?s a huge stereotype, but at least CompTIA Exams in terms of the enterprise, isolation can be a very good thing. The concept behind it is that sometimes pieces of data or services running within a forest require domains that are separated completely from others. This means that, no mat- ter what, particular administrators are the only individuals who can administer a particular area in your environment. As with autonomy, you would likely consider isolation for two resources: services and data. With service isolation , you are preventing other administrators from controlling a particular resource. With data isolation , you are blocking other admin-istrators from accessing important ?les and information.
When designing a forest, there are traditionally three models for breaking the forest up into understandable parts: organizational, resource based, and restricted access. Each of these structures is de?ned in the following sections, along with the pros and cons of the concept.
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