alarm_analysis.reports.stalealarms:stale_alarms
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alarm_analysis.reports.stalealarms:stale_alarms [2020/06/08 09:14] – su | alarm_analysis.reports.stalealarms:stale_alarms [2021/01/22 15:14] – [Stale Alarm Detection] su | ||
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- | **Stale alarms** are alarms which are/were on for 24 hours or more and transitioned in the period | + | ====== Stale Alarms Report ====== |
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+ | **Definition:** Stale alarms | ||
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+ | {{ : | ||
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+ | The picture above shows an example Stale Alarm Report. | ||
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+ | By default, the report shows the Top 20 stale alarms (sorted by "Total On Time") for a defined reporting period (e.g. 1 Oct 2020 00:00:00 - 1 Nov 2020 00: | ||
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+ | The calculated metrics are: | ||
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+ | * **Count:** Number of Stale Alarms / Total Number of Alarms, for reporting period. | ||
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+ | * **Total on Time (days): | ||
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+ | ===== Stale Alarm Detection ===== | ||
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+ | Alarm Analysis operates on //Reporting Periods//. That is, Alarm Analysis compiles metrics for a given date-range | ||
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+ | {{ : | ||
+ | {{ : | ||
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+ | With reference to the above illustration, | ||
- | The historical view of **stale alarms report** will show alarms that | ||
* were on for 24 hours in the selected period (1). | * were on for 24 hours in the selected period (1). | ||
* transitioned after 24 hours (or more) in the selected period (2,3) | * transitioned after 24 hours (or more) in the selected period (2,3) | ||
* were on for longer than 24h but haven' | * were on for longer than 24h but haven' | ||
- | * were on for longer than 24h but haven' | ||
- | This can visualised like so: | + | Example 5 has no associated Alarm, therefore no on-time |
- | {{ : | + | |
+ | Examples 6 and 7 transition outside the reporting period and are therefore **omitted** | ||
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- | Example 6 is part of **stale alarms** report and does **not** contribute to stale alarm report. |
alarm_analysis.reports.stalealarms/stale_alarms.txt · Last modified: 2021/01/22 15:15 by su