Quoting [EMAIL PROTECTED]: > Hi again, > > I have been trying to figure out SLA's for some hours now and start to > understand them. > > I noticed in the SLA Report overview of some of my Storage Interfaces (which > were 'failing the SLA') that there are lots of events, a selection: > > Start Stop Duration Type > 2005-01-21 00:00:02 2005-01-21 00:30:32 00:30:30 hs SLA X > 2005-01-21 00:30:02 2005-01-21 01:00:32 00:30:30 hs SLA X > 2005-01-21 01:00:02 2005-01-21 01:30:32 00:30:30 hs SLA X > > For some reason they overlap, I guess there is a reason for that. But now one > sees multiple SLA 'failures', while it is simply a large one. This also > results > in a longer Unavailable time than view range and a negative Availability > percentage. > This was for a harddrive, but my Linux Memory is using Storage polling too, > and > that is more dynamic. Because of all these overlapping events, you don't see > when the % storage is not too high.
I still don't understand the above behaviour. I do have some more information though. I now know these alarms are generated by the rrd_analyzer. But what I don't understand is this: If at 13:11 an SLA is failed, and then the rrd_analyzer runs, it adds an event with start time 13:11, but it also gets an end time exactly 30:30 minutes later. Now by default the rrd_analyzer runs every 30 minutes (as cronjob), so that is where the 30 minutes plus an extra 30 seconds might come from. But it must be hardcoded, since when I run the rrd_analyzer every minute i get an alarm every minute too, both 30:30 long and thus overlapping 13:11:00 -> 13:41:30 13:12:00 -> 13:42:30 What I don't understand is why it: - gives an alarm that ends in the future - and thus gives false information, or at least an alarm for a time the analyzer knows nothing about. - the minimum period is 30:30 minutes; what if I want to know a more detailed time period of the SLA failure? At this moment the alarm information for this storage device is useless to me. I could not test yet whether this is only for 'Real Memory', for the 'Storage' type or for all SLA's. Alex ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ jffnms-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jffnms-users
