VMware Virtual Machines Datastore IOPS report reveals raw disk I/O operations per second (IOPS) of virtual machines. This report is helpful for diagnosing read and write efficiency and in some cases memory exhaustion.

High IOPS metrics can indicate virtual memory usage where RAM needs exceed allocation. Use this report together with the VM Memory Utilization and Disk Activity report.

Understand column data

The default view of each report contains a grid with the following columns:

  • Virtual Machine. Device name/CPU type (CPU index in parenthesis).
  • Read: 1 Hour Avg. Average disk operations per second.
  • Read: 1 Hour Max. Peak disk operations per second observed in last hour.
  • Read: Hour Current. Last observed disk read operations per second.
  • Write: 1 Hour Avg. Average disk write operations per second.
  • Write: 1 Hour Max. Peak disk write operations per second observed in last hour.
  • Write: Hour Current. Last observed disk write operations per second.
  • Poll Time. Date and time of last poll.

Generate a report

Choose Device. Choose one or more host devices.

Sort and pick columns. Sort and pick columns.

Rename Report. Edit report name using the Report Settings dialog.

Note: This report only returns VMware Virtual Machines Datastore IOPS metrics for virtual machines when VMware hosts or VMs share the appropriate VMware credentials. For more information, see Using Credentials.
Tip: To return each virtual machine's metrics in this report, VMware Virtual Machines Datastore IOPS monitoring needs to be switched on in the virtual machine's Device Properties interface () on the monitors tab.

  • Export report data

    Report data can be exported from WhatsUp Gold, reused, and distributed in multiple formats. Select Expand () from the Dashboard Options () menu. After the report has been expanded, select the Export Data icon to access the following options:

    • HTML. Generate and download a .htm file presenting your report data as it appears in the WhatsUp Gold user interface.
    • Excel. Generate and download a .xml spreadsheet containing your report data.
    • CSV. Generate and download a .csv file containing your report data.
    • Text. Generate and download a .txt file containing your report data.
    • Schedule Export. Set a recurring date and time, format, and email destination for report data export.