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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-19514

Disk utilization Windows template wrong

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    Description

      Steps to reproduce

      1. link Windows physical disks by Zabbix agent to Windows host
      2. check graph Disk Utilization

      Result:

      Expected:
      Correct utilization by Disk Idle Time. wrong upside, correct -down.

       

      Problem are perf_counter_en"\PhysicalDisk({#DEVNAME})% Disk Time",60
      MS explain https://docs.microsoft.com/en-us/archive/blogs/askcore/windows-performance-monitor-disk-counters-explained

      %Disk Time (% Disk Read Time, % Disk Write Time)
      The “% Disk Time” counter is nothing more than the “Avg. Disk Queue Length” counter multiplied by 100. It is the same value displayed in a different scale.
      If the Avg. Disk queue length is equal to 1, the %Disk Time will equal 100. If the Avg. Disk Queue Length is 0.37, then the %Disk Time will be 37.
      This is the reason why you can see the % Disk Time being greater than 100%, all it takes is the Avg. Disk Queue length value being greater than 1.

      Second graph are with witch seems ok for me and show 1=1 with performance monitor in task manager disk tabs.
      perf_counter_en"\PhysicalDisk({#DEVNAME})% Idle Time",60
      With java script "return (value - 100) * -1"

      this issue can resolv also 18869

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              abiba Andrew Biba
              agrisv agris
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                Created:
                Updated: