Chapter 9 Monitoring the DW 2.0 environment
The DW 2.0 environment is complex and dynamic. There are many complex interactions between the various components. Data flows from one component to another, transactions are executed, and transformations of data are done.
In many ways the DW 2.0 environment is like a black box. Data is put in one place and taken out of another, and mysterious things happen in between. Unfortunately, if the DW 2.0 environment is treated like an opaque black box, it is a good bet that over time, things will happen inside the black box that are untoward—data starts to collect where it shouldn’t, transaction response time turns bad, data is not placed where it ought to be placed, or worse.
The DW 2.0 environment should ...