Disk Utilization
Disk Utilization reports compare disk storage capacity to actual utilization for devices with on-disk storage. These reports are useful for assessing current needs and predicting future trends for storage resources.
(Report Options). Jump to a detailed dashboard or control panel for:- . Device hostname/IP address.
- . Disk label (device index in parenthesis).
- .Disk capacity.
- . Average percent of disk used for the selected date range. For understanding how to report the freshest measurements for storage associated with virtual machines, see VM considerations.
: If you want to return disk utilization metrics for a Hyper-V guest VM, you must enable the VM to record WMI or SNMP metrics as described in a community article titled Hyper-V Disk Utilization Information May Not Be Available. Outside of this requirement, WhatsVirtual also includes read/write metrics in the Virtual Machines Disk Activity report.
To display additional measurements, click a column heading (
) for column selection (
). You can also include:
- . Minimum percent used for the selected date range.
- . Maximum percent disk used for the selected date range.
- .Average disk space used since polling began.
- . Minimum disk space used since polling began.
- .Maximum disk space used since polling began.
- . Average free space since polling began.
- . Duration since last sample.
Generate a report
.
Choose one or more host devices you want Disk Utilization measurements for.
Use the Select Device dialog for one of the following:
Control
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Description
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Device 
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Table/chart(s) of disks and usage metrics. Choose a single device to display all disks and their capacity usage.
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Device Group 
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Ranked list. Choose to return the top-ranked disk with respect to capacity usage for each device in the selected group. You can also create custom or dynamic groups.
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Network 
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Ranked list. Choose to display the top-ranked disk with respect to capacity usage for each WhatsUp Gold managed device.
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: You can organize devices into custom or dynamic groups. For more information, see Grouping Devices.
. (
,
) Choose times for the Disk Utilization. (For recently observed measurements, select from the Date Range
drop down list.)
Choose time constraints for data view
Control
|
Purpose
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Date Range 
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Choose or define an overall date range.
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Business hours 
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- 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.
|
.
Choose and hide columns, reorder columns, and customize your data view.
Filter and pick by column
Click a report heading (
) and use the "column picker" (
) from the drop down list.
Control
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Purpose
|
Columns. 
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Click a check box to display the column. Clear the check box to hide it.
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Move Column.
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Click on a column heading and drag it to reorder your table's columns.
|
.
Fine tune report presentation and range of values displayed using the Report Settings
dialog (optional).
Specify threshold and top n:
Control
|
Purpose
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Show Top n Items
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Limit items to the samples with the highest (or lowest) utilization.
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Threshold Type
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Switch between minimum or maximum mode for cutoff values for the ranked list.
- At or Over. Show peak usage period. (Utilization percentage equal to or greater than Threshold.)
- At or Under. Show usage periods where resources are unused or possibly down. (Utilization percentage equal to or less than Threshold.)
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Threshold (percent)
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Baseline value used to trim ranked device list based on peak or subpeak capacity when returning the Top n.
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Chart and visualize data over time (single device
)
Charting and visualization is available when you select a single device.
Control
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Purpose
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Display Options
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Present data as a chart, a table grid, or both.
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Chart Type
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- Gauge charts. Available when you select a Date Range of
. - Time series. Available when you select a Date Range interval (
, 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.
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Chart Options
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- 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.
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: Trend lines represent a moving average that can be compared with line and area graphs to reveal peak and sub peak intervals, periods of burstiness, latency, and interruption.
: This report only returns disk utilization metrics for devices that already have the appropriate performance monitoring enabled. To enable these polled measurements, see Disk Utilization Monitor.
: You can gain access to "root" (/) partition metrics for Linux and UNIX OS by using the SSH Monitor or by assigning the SNMP user (as designated in snmp.conf) with appropriate Sudoer privileges. Disk utilization measurements for a Linux or UNIX "root" partition (/) are at first typically not included in this report. When "root" (/) partition totals are not included, total disk capacity in the report typically appears 5% less than the physical disk.
Share, export, and save as PDF
Most generated Disk Utilization report data can be printed, shared, and exported when selecting (
) from the Dashboard Options (
) menu. After the report has been expanded, select export (
) to access the following options: