Summary
The key to monitoring the performance on a system is to establish a baseline against which to compare your system’s activity data. Start gathering activity data before the system goes into production. This is a proactive step and is the recommended approach.
Unless you truly enjoy analyzing reams of data, a number of worthy tools are available today that can be used to gather and analyze activity data in a heterogeneous environment. These tools exist and should be used. Here are some typical excuses:
They cost too much.
They are difficult to use.
We don’t have the time to look over the data they report.
System administrators always seem to find time to fight fires, but it’s much more efficient to plan ahead and be prepared than to react ...
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