One aspect of sizing is the size of variance.db. (there could be other aspects too but this is one that I can think of):
variance.db Disk Space Calculation Example
The variance.db file should rarely exceed 400 MB. The equation for estimating the variance.db disk space requirement uses the following inputs:
- Number of metrics being baselined because of the enabled configuration (Differential Controls)
Here are the equation variables:
M = number of unique metrics being baselined, live and historical combined
D = required disk space (bytes)
You can estimate the variance.db disk space requirement using this equation:
D = 20000 * M
Here is an example:
Metrics = 5 K unique over time (both live and historical combined)
The variance.db file size = 20000 * 5000 = 100,000,000 bytes = 95 MB.
You can see the current number of baselined metrics in each collector from the following supportability metric custom metric agent.
Enterprise |Baseline Engine: Total Metrics Baseline (count)
Please check the total metrics baseline count to see if there is a difference as a result of the two options you presented.
Francis