The SLA widget displays the availability (%) of the chosen element (cluster, host or check) for the last 7 days.
The duration time for compute last 7 days percent is between now and 00h00 last 7 days.
2 SLA values are present:
The previous day trend ( T_Day ) is the comparison between current day ( A_Day ) element availability and last day availability ( A_Lday ) .
T_Day = A_Day - A_Lday
| Day trend ( T_Day ) | Arrow |
|---|---|
| +0% < T_Day ≤ +100% |
|
| T_Day = +0% |
|
| -2% ≤ T_Day < 0% |
|
-100% ≤ T_Day < -2% |
|
Example :
As the SLA refers to the availability of an element, a click on the widget will open the Detail panel of this element in the historic tab (see the Host Detail View and History Tab chapter for more details).
Exemple of compute for the last 7 days percents at 10h00:
| current day | 100% | * 10 | = 1000 |
| current day - 1 | 80% | * 24 | = 1920 |
| current day - 2 | 90% | * 24 | = 2160 |
| current day - 3 | 90% | * 24 | = 2160 |
| current day - 4 | 85% | * 24 | = 2040 |
| current day - 5 | 90% | * 24 | = 2160 |
| current day - 6 | 100% | * 24 | = 2400 |
| ∑ 154 | ∑ 13840 |
154 : hours in the last 7 days
138,40 : uptime hours in the last 7 days
13840/154 = 89%