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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

2601.0. "Alarms on Statistics - Duration ?" by MFRNW1::SCHUSTER (Karl Schuster @MFR Network Services) Fri Mar 20 1992 12:55

I have a question/proposal to alarms on statistics (PA-FM):

If I specify an alarm with an interval of 30 minutes ( at every 00:30:00 ),
why don't we use this time as the default polling interval automatically.
This would make alarming on statistics more simple and valueable, because
with a duration of less than 30 minutes I loose information.

Regards, Karl
T.RTitleUserPersonal
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2601.1Duration != periodicityTOOK::MINTZErik Mintz, DECmcc Development, dtn 226-5033Fri Mar 20 1992 15:027
Have you tried specifying the duration which you would like used by
PA to compute the statistics?  Alarms does not know, in general, what
duration you prefer, so if no duration is specified, PA uses its default.
(That is, you might want a rule evaluated once an hour, but to reduce
polling prefer that the statistic is computed for a duration of 5 minutes).


2601.2Not sure if the 'schedule time' is passed to PANANOVX::ROBERTSKeith Roberts - DECmcc Toolkit TeamFri Mar 20 1992 16:1931
RE: .0

> If I specify an alarm with an interval of 30 minutes ( at every 00:30:00 ),
> why don't we use this time as the default polling interval automatically.
> This would make alarming on statistics more simple and valueable, because
> with a duration of less than 30 minutes I loose information.

  Karl,

  I like it!  8)

  But (didn't you know it) -- I'm not sure if the 'Schedule time' is actually
  passed to PA.  Without going into the details; Time is broken up into
  two pieces:  Schedule Time and Scope-of-Interest Time.

  The 'at every 00:30:00' is the schedule time.  The IM/Dispatcher will
  coordinate calling PA every 30 minutes.  I believe (but not sure) that
  this Schedule portion of the time-specification is lost (ie, PA doesn't
  get to see it).

  The 'for duration 00:30:00' is the scope-of-interest time.  PA does see
  this (and the IM/Dispatcher ignores it).  PA uses this value to determine
  when to collect the data used in its calculations.

  ------

  I'm sure this isn't the answer you wanted to hear.  Time is very complex
  and could use some help.  Your suggestion is a good idea and could help
  make Time much simpler.

  /keith
2601.3durationMFRNW1::SCHUSTERKarl Schuster @MFR Network ServicesMon Mar 23 1992 07:103
    re .1
    I specify: at every 00:30:00, for start -0:00:00 duration 0:25:00
    But I loose the counters of the last 5 minutes.