Database Reference
In-Depth Information
Figure 17-3.
Comparison wizard for choosing targets
Comparison can also be done on two historical metrics collected by EM and then shown on a single graph.
Comparing Two Targets for a Single Metric
It's a great feature to be able to compare the metrics of two different databases. In Figure
17-4
you can see that on
January 23, 2014, dbtargetp21 was subjected high I/O wait, which could have been caused by a DoS attack, although
the timing at just before nine in the morning suggests this is a peak of demand on the target database related to folks
arriving at workâslightly later than normal for a Friday. The EM database did not experience the peak as it is used
steadily 24/7.
