VMware Device Datastore IOPS

VMware Device Datastore IOPS report reveals the average count of raw I/O operations per second (IOPS) for a virtual machine 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.

Disk. Disk name (index in parenthesis).
Poll Time. Date and time of last poll.
Average Read Requests per Second. Average disk operations per second.
Average Write Requests per Second. Average disk operations per second.

Generate a report

Choose Device. Choose one or more host devices you want VMware Device Datastore IOPS information for.

Choose time constraints. (,) Choose times for the VMware Device Datastore IOPS. (For recently observed measurements, select Last Polled from the Date Range drop down list.)

Filter and reduce by row and by column. Sort and remove columns, group rows based on specific column values, and remove unwanted information from the table.

Chart, adjust output, and visualize. Fine tune report presentation and range of values displayed using the Report Settings dialog (optional).

Note: This report only returns VMware Device Datastore IOPS metrics for virtual machines when host machines have the appropriate VMware credentials. For more information, see Using Credentials.

Share, export, and save as PDF

Most generated VMware Device Datastore IOPS report data can be printed, shared, and exported when selecting Expand () from the Dashboard Options () menu. After the report has been expanded, select export () to access the following options:

Print/Export to PDF. Automatically generate a PDF file of the report.
Export Data. Export VMware Device Datastore IOPS data and leverage outside of WhatsUp Gold.
Schedule Export. Set a recurring date and time, format, and email destination for report data export.

Control	Purpose
Device	Browse and choose a single device.
Device Group	Choose an existing group of one or more devices. You can also create custom or dynamic groups.

Control	Purpose
Date Range	Choose or define an overall date range.
Business hours	Focus on specific days of the week and periods within each day. Reveal trends that are sensitive to business hours, time zones, and other periodic attributes in the observed data.

Control	Purpose
Sort.	Sort column in ascending or descending order.
Columns.	Pick the columns you want to view. Click a check box to display the column. Clear the check box to hide it.

Control	Purpose
Show Top n Items	Limit items to the samples with the highest (or lowest) interface errors.
Threshold Type	Switch between minimum or maximum mode for cutoff values for the ranked list. At or Over. Show peak occurrence period. (Observations equal to or greater than Threshold.) At or Under. Show occurrences equal to or less than Threshold.
Threshold (percent)	Baseline value used to trim ranked device list based on peak or subpeak periods when returning the Top n.

Control	Purpose
Display Options	Present data as a chart, a table grid, or both.
Chart Type	Gauge charts. Available when you select a Date Range of Last Polled . Time series. Available when you select a Date Range interval (Today , for example). Line/Area. Scatter graph that connects adjacent measurements with straight lines. Spline/Area Spline. Choose a graph with a smoothed appearance where adjacent samples exhibit a gradual slope.
Chart Options	Legend, Grid Lines, Range Selector. Include legend, grid lines, and range selector for readability. Trend Lines. Present data with a smoothed average to show trend. Vertical Axis Scale. Automatically scale to fit data or specify a finite range.