Page History
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| Alert type | Color | Meaning |
|---|---|---|
| OK | Green | The alert is in an acceptable threshold. |
| Warning | Yellow | The alert reaches a Warning threshold. |
| Critical | Red | The alert reaches a Critical threshold. |
Filter your alert results in the Alerts tab by specifying a timeframe or by selecting default timeframes of 8 hours, 1 day, 5 days, or 4 weeks. Click image to display in full size view. 
You can also filter your alert results by alert category or categories’ order. Click Edit to order and select the categories you want to display in the Alerts timeline view.
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Active alerts panel
The Alerts tab also lists all the active alerts of your monitored SQL Server instance over a period of time. The active alerts panel provides the following information:
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