The reason this reassessment is important for an environment is because in many cases,
an ISA server that has been deployed simply sits in one place, doing its job, and the fact
FIGURE 17.7 Using the ISA Server Performance Monitor.
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17
Performing Quarterly Maintenance
that it can be utilized for other functionality often is overlooked. Organizations may go
out and purchase expensive SSL/VPNs, intrusion-detection solutions, or content-caching
products to satisfy newly identified needs, without realizing that a product that is
currently deployed can fill those needs easily.
Summary
ISA Server 2006 was written to perform well without regular fine-tuning. Indeed, these
capabilities are almost too good, as many ISA servers subsequently become neglected in
favor of other ???squeaky wheels??? in an IT organization. For the best reliability and security
of an ISA environment, however, it is important to follow best-practice maintenance
guidelines to ensure that ISA continues to provide for the best performance.
Maintaining a checklist of ISA maintenance daily, weekly, monthly, and quarterly procedures,
and integrating these tasks into an overarching maintenance plan for an IT environment,
can go a long way to achieving the goal of a well-run and well-behaved
environment.
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