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IS Virtual Bytes RRS feed

  • Question

  • I am getting alerts "IS Virtual Bytes is outside the calculated baseline" for my exchange server. I understand that I can tune the sensitivity but what does all the inner and outer sensitivity mean? And how does that relate to the values of 2017882112 stated in the email?

     

    Alert: IS Virtual Bytes is outside the calculated baseline

    Source: Information Store

    Last modified by: System

    Last modified time: 8/31/2010 7:57:04 PM Alert description: The IS Virtual Bytes is outside the calculated baseline. The current value is 2017882112

    Wednesday, September 1, 2010 6:26 AM

Answers

All replies

  • actually tuning this is pretty hard. self tuning thresholds will give loads of false alerts and need to build up a new collection set whenever the agent is restarted (which probably means 1 week no monitoring). Usually it's better to disable the stt and make a threshold rule with a hardcoded threshold value.
    Rob Korving
    http://jama00.wordpress.com/
    Wednesday, September 1, 2010 6:56 AM
  • I totally agree with that. Was trying to figure out the relation between the inner/outer sensitivity with the value I received. So when you mention hardcoded threshold, do you mean I will set it in such a way when the threshold go above a certain amount, 2100000000 for example, then it will trigger an alert?
    Wednesday, September 1, 2010 7:46 AM
  • yes, but that would mean disable the rule (and the corresponding collecting rules) and create a new rule. Finding the correct value might be difficult though.


    Rob Korving
    http://jama00.wordpress.com/
    Wednesday, September 1, 2010 8:02 AM
  • I have many Exchange servers in my Infra. So I believe by disabling the rule for those that give me problem will be helpful. What is the steps to creating such rules? Finding the correct value should not be a very big issue as I see a constent flow of it through the performance graph.
    Desmond Tan http://sgwindowsgroup.org/blogs/desmond/
    Wednesday, September 1, 2010 8:28 AM
  • Hi,

    Regarding the Self Tuning Thresholds settings, please refer to the following article:

    Self Tuning Thresholds - love and hate:

    http://blogs.technet.com/b/kevinholman/archive/2008/03/19/self-tuning-thresholds-love-and-hate.aspx

    To disable the STT and make a threshold rule with a hardcoded threshold value, you can refer to the following article:

    How to Create a Static Threshold Monitor in Operations Manager 2007:

    http://technet.microsoft.com/en-us/library/bb309655.aspx

    Here are more information:

    http://technet.microsoft.com/en-us/library/dd146142.aspx

    Hope it helps.


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    • Marked as answer by DesmondTan Thursday, September 2, 2010 3:47 AM
    Thursday, September 2, 2010 3:28 AM
  • Hi,

    Thanks for the link~ I think it's helpful ;)


    Desmond Tan http://sgwindowsgroup.org/blogs/desmond/
    Thursday, September 2, 2010 3:47 AM
  • Hi,

    Regarding the Self Tuning Thresholds settings, please refer to the following article:

    Self Tuning Thresholds - love and hate:

    http://blogs.technet.com/b/kevinholman/archive/2008/03/19/self-tuning-thresholds-love-and-hate.aspx

    To disable the STT and make a threshold rule with a hardcoded threshold value, you can refer to the following article:

    How to Create a Static Threshold Monitor in Operations Manager 2007:

    http://technet.microsoft.com/en-us/library/bb309655.aspx

    Here are more information:

    http://technet.microsoft.com/en-us/library/dd146142.aspx

    Hope it helps.


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    what is the impact of getting this alert? if we get this alert consecutively what is the basic problem for generating like this?
    Cheers Esakki Muthu R
    Tuesday, November 16, 2010 10:55 AM
  • Kindly tell me what is the impact of getting this????? ASAP
    Cheers Esakki Muthu R
    Thursday, November 18, 2010 6:14 AM
  • All this does is alert you that you are using more (or less maybe) virtual bytes than last week at that specific point in time. That might or might not be a problem. And because of this high chance of being a "false positive" most people recommend to disable such rules and create static ones.


    Rob Korving
    http://jama00.wordpress.com/
    Thursday, November 18, 2010 7:57 AM