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Foglight for Hyper-V 5.8.3 - User Guide

About Foglight for Hyper-V Agent administration Performance monitoring with the Hyper-V Environment dashboard Performance investigation with the Hyper-V Explorer Foglight for Hyper-V alarms Appendix: Hyper-V Agent error codes

Volume Summary view

The Volume Summary view shows the levels of resource utilization and consumption for a selected volume.

This view appears in the display area when you select a volume in the Summary - All Storage view.

This view is made up of the following embedded views:

Table 75. Alarms

Lists the alarms generated against the selected datastore.

Alarm Message. An explanation about why the alarm occurred.
Severity. Indicates the alarm severity: Warning, Critical, or Fatal.
Time. The time at which the alarm was generated.

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Alarm Message, Severity, or Time. Displays the Alarm dialog box, showing additional information about the alarm. For more information about alarms in Foglight, see the Foglight User Help.
Figure 122. Alarm dialog box
Table 76. Related Items

Shows the selected volume and other components associated with it in your virtual infrastructure.

Clusters. The number of clusters associated with the selected volume, followed by the related alarm counts.
Servers. The number of servers associated with the selected volume, followed by the related alarm counts.
Virtual Machines. The number of virtual machines that are associated with the selected volume, followed by the related alarm counts.
Volume. Represents the selected volume. Shows the counts of the alarms generated against the volume.

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Clusters. Displays the Clusters dwell, showing the names and states of all clusters that are associated with the selected volume.
Figure 123. Clusters dwell
Server. Displays the Servers dwell, showing the names and state of the servers associated with the selected volume.
Figure 124. Servers dwell
Virtual Machines. Displays the Virtual Machines dwell, showing the names and states of all virtual machines that are associated with the selected volume.
Figure 125. Virtual Machines dwell
Volume. Displays the Other Items Inventory dwell, showing the state of the selected volume.

Shows the resource consumption for the selected volume.

Capacity. The total amount of volume space, including free and used space.
Est. Time Until Full. The estimated amount of time after which the selected volume becomes full.
Free. The amount of volume space that is available for use.
Max File Size. The maximum file size on the selected volume.
Percent Free. The percentage of volume space on the that is available for use.
Type. The file system on the selected volume.
URL. The URL to the selected volume.
Used. The amount of volume space that is currently in use.
Volume. The name of the selected volume, followed by the related alarm counts.
Weekly Growth Rate. The projected amount of the volume space that becomes in use on a weekly basis.

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Free or Used. Displays the Logical Drive Utilization dialog box.
Figure 127. Logical Drive Utilization dialog box
Percent Free. Displays the Storage Used dialog box.
Figure 128. Storage Used dialog box

Volume view

The Volume view shows the data transfer rates and latency detected for the selected volume. It also identifies the virtual machines that use the highest amounts of the volume resources.The information provided on this tab can help you prevent potential bottlenecks by reallocating disk resources where they are most needed.

This view appears in the display area when you click in the Volume Summary view.

Figure 129. Volume view

This view is made up of the following embedded views:

Shows the amount of the volume I/O resources used by the virtual machines associated with the selected volume.

I/O Distribution. A pie chart indicating how much each virtual machine associated with the selected volume contributes to the overall use of I/O resources.
VM Offenders, Hyper-V Server. The name of the Hyper-V server on which the virtual machine is running.
VM Offenders, I/O. The rate at which the virtual machine writes to and reads from the volume.
VM Offenders, IOps. The number of disk read and write operations the virtual machine performed from the beginning of the selected time range.
VM Offenders, Latency. The latency rate detected for the disk read and write operations the virtual machine performed from the beginning of the selected time range.
VM Offenders, Name. The name of the virtual machine.

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VM Offenders, Hyper-V Server. Shows the Hyper-V server details in the Hyper-V Explorer Summary tab.
VM Offenders, Name. Shows the virtual machine details in the Hyper-V Explorer Summary tab.

Displays the data transfer rates and latency detected for the selected volume.

Avg/Peak I/O. The average and peak data transfer rates detected for the selected volume.
Avg/Peak Latency. The average and peak latency rates detected for the selected volume.
Latency. The latency detected for the selected volume over the selected time range.
Throughput. The data transfer rates detected for the selected volume over the selected time range.
Volume. The name of the selected volume and its alarm state.

Virtual switch monitoring

A Hyper-V Virtual Switch is a software-based layer-2 Ethernet network switch. The switch connects virtual machines to virtual and physical networks.

To review data collected about a specific volume or all volumes, make your selection in the Quick-View.

Virtual Switches view

The Virtual Switches tree view lists the available volumes and indicates their severity state.

This view appears in the Quick-View on the left when you select the Virtual Switches tile in the Virtual Environment view.

Figure 130. Virtual Switches view

Selecting the All Virtual Switches node displays the overall resource utilization for all virtual switches in your integrated system and identifies the ones that consume the highest amount of network resources in the Summary - All Virtual Switches view on the right. Similarly, selecting a virtual switch node shows switch-specific metrics in the Summary - Virtual Switch view.

Alarm severity. The state of the most recent alarm raised against the virtual switch.
All Volumes. A parent node for the instances of all virtual switches that appear in this view.
Volume. The name of the virtual switch.

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