Setting custom intervals within VirtualCenter

It is possible to set custom intervals for viewing performance data. By default you get ranges of past day, week, month, and year.  This article shows how to get hourly views. Be careful you don’t go for values that are outside the supported range as outlined in Answer ID 1883 – VirtualCenter Performance Graphs Display Gaps in Data After Customizing Performance Intervals.

Intervals are a function of the number of samples per minute times the number of samples. So 10 samples at an interval of 6 minutes would give us an hour. VMware have a knowledge based article that recommends appropriate values for collecting information on intervals that are less than an hour. It is Answer ID 1925 – Setting Performance Intervals to Less Than a Past Day

It’s important not to set an interval for less than 5 minutes, as this is a built-in minimum value. If you configure 5 or less you will get “gaps” in your performance data as outlined in Answer ID 1883. What this means is that you cannot get a minute by minute view of what is happening.

Here’s how you do it:

  1. In the vCenter, Choose File, and VMware VirtualCenter Settings, in the Performance Tab
  2. In the list select Past Hour
  3. Click into the Name: field, and type Past Hour
  4. In the Minutes: edit box, type 6
  5. In

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  1. the Number of Samples: edit box
    , type: 10
  2. Click Add and then click OK

This custom performance interval/range now appears at every point in the performance tabs.


You can delete a custom performance interval and it does not delete the performance data for the other performance interval

  1. In the vCenter, Choose File, and VMware VirtualCenter Settings
  2. In the list select Past Hour
  3. Choose Remove
  4. Confirm the dialog box


This was first published in December 2005

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