Availibility report questions

[WillemDH]

Hello,

I got some questions about the renewed availibility reports.

1) What does "Assume Initial States" dropdownbox do? Does it mean that when a report is made for a period where a host did not exist, it will treat the host as defined in "First assumed host state"? What happens when it is set to no? Will it presume the host was down if it did not exist?

2) What does the "Assume State Retention" dropdownbox do?

3) What does the "Assume States During Program Downtime" dropdownbox do? I assumed first this had to be on yes to exclude scheduled downtime for the availibility, but I ran two reports, on with "Assume States During Program Downtime" dropdownbox set to yes and one with "Assume States During Program Downtime" dropdownbox set to no and the result was the same. I later found out that the downtime seems to be by default excluded when the "Hide downtime" is unchecked, is this correct?

4) I'm having doubts about the 'Hide downtime' checkbox. I have two different availibility reports for hostgroups. One of them is showing higher availibility percentages when 'hide downtime' is unchecked. The other is showing better availibility percentages when 'hide downtime' is checked. This seems very strange to me, as I would expect availibility percentages to always be better when downtime is excluded from the report. Any thoughts on this?

5) Now I'm completely confused. I've been running the same report several times for the same hostgroup with the same parameters for last quarter and I seem to get different results.. How is this possible? Just ran it a third time and the third report seems to be the same as the second. Maybe I made a mistake in the first report...... (but I doubt that, as the only thing I check /uncheck is hide downtime)

Grtz

Willem

[abrist]

1) If Nagios does not know the initial state of host when the period begins, it will use the object initial state. Otherwise I presume it will be treated as "Unknown"

2) If the core nagios process was stopped during the time period, then the checkbox will ensure that nagiso assumes the retained state for those periods.

3) If the nagios core process is down during the period, the monitored objects will be treated as their assumed state instead of marked as down or critical.
Hide downtime does exactly what you described - Scheduled downtime will not be included in the report.

4) This all depends on the state during downtime. If the host was up during most of it's downtime, but down outside of it, you may see the up percentage go down without the hide downtime box checked.
If the host was down during downtime, but up beyond that, you will see the up percentage go up with the hide downtime state box checked.

5)Not sure what to tell you here without more information.

[WillemDH]

Thanks Andy for the clarification. My last reports I ran had consistent outputs.

In fact, you can close feature request http://tracker.nagios.com/view.php?id=441, as this was exactly what we needed.

This was a really important feature for us.

I do have some other feature requests related to this in mind. It would be nice to see in the overview how much percenateg of the timeperiod specified the specified hosts were in downtime. i'll make a new feature request for this.

You can close this thread.

Willem