How to interpret SQL Server charts having baseline metrics.
対策
The following chart examples from the SQL Server Executive Summary Report
The blue line is the baseline range (which extends from the minimum 20,090,250.35 to the maximum 43,040,146.65), if metric line falls within this range then there is no change from baseline behavior. The baseline is generated based on the values collected over time for each metric. The following KB article provides information on the baseline:https://support.quest.com/foglight/kb/66462. The Baseline is calculated based on the historical values (up to 90 days) of the metric.
The grey bar is the overall range of values.
The green bar is the current value of 16,763,101.00. This value is below the baseline range of 20,090,250.35 and 43,040,146.65, the bar is however green because it is within the normal threshold range.
The colored lines below the metric represent the threshold values that are set in the system, with colors representing the ranges for warning (yellow), critical (orange), and fatal (red).
Workload Summary Report
Baseline range
Threshold set for the Disk I/O set by the system at the critical range
Threshold set for the Disk I/O set by the system at the normal range
This is the 57% value, it is green because it falls in the normal range