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
|
Description
|
Device 
|
Table/chart(s) of disks and usage metrics. Choose a single device to display all disks and their capacity usage.
|
Device Group 
|
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.
|
Network
|
Ranked list. Choose to display the top-ranked disk with respect to capacity usage for each WhatsUp Gold managed device.
|
: 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
|
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.
|
. 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
|
Purpose
|
Columns.
|
Click a check box to display the column. Clear the check box to hide it.
|
Move Column.
|
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
|
Show Top n Items
|
Limit items to the samples with the highest (or lowest) utilization.
|
Threshold Type
|
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.)
|
Threshold (percent)
|
Baseline value used to trim ranked device list based on peak or subpeak capacity when returning the Top n.
|
Chart and visualize data over time (single device )
Charting and visualization is available when you select a single device.
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 .
- 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.
|
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.
|
: 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:
Performance
Choose Device.