In short: I want to monitor, and eventually quantify in a report down the line, the availability of either a SQL Server instance or an Oracle Database. I understand that there is an "application" availability metric that exists in the SAM monitoring tool; however, this also lumps in whether sub-components of the template have gone critical or not, and doesn't give a true database/instance uptime/availability.
At greater length: What I am after could be considered a "ping" check of sorts. I just want to know, can I reach the database/instance? If not, record it, and we would obviously get a corresponding alert as well with current (out-of-the-box) alerting in place. The issue with the built-in functionality that I've come across, is that if one counter or another goes critical for one polling interval, then it shows that the application was not in an available or was in a critical state at that time. Even though, it is likely the case that there was a dip in buffer cache-hit ratio or something for 5 minutes and the SQL instance never actually went down/unavailable.
Is something like this possible through either custom queries or tweaking a current template? I mean, I get why someone might want to see the "application" availability the way it is designed now, but it really skews results when trying to measure whether the databases/instances were truly unavailable or not.
If I'm way off base here, and this can be accomplished with the current out-of-the-box settings in SAM, please let me know. I just can't seem to find anything useful in getting something more pertinent to what I'm looking for in my research. Again, I want to know if the instance/database is accessible, and only if it is down (timeouts, instance down, etc.) then show that it is critical/unavailable.
Hopefully, in my rambling, I've made a little sense. Any help is appreciated.
Thank you in advance
