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Foglight for Hyper-V 5.7.2 - User and Reference 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.
Figure 123. Volume Summary view
This view is made up of the following embedded views:
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Alarms
•
Related Items
•
Resource Utilizations
 
Table 75. Alarms
Description
Lists the alarms generated against the selected datastore.
Data displayed
•
Alarm Message. An explanation about why the alarm occurred.
 
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Severity. Indicates the alarm severity: Warning, Critical, or Fatal.
 
•
Time. The time at which the alarm was generated.
Where to go next
Drill down on:
 
•
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 124. Alarm dialog box
 
Table 76. Related Items
Description
Shows the selected volume and other components associated with it in your virtual infrastructure.
Data displayed
•
Clusters. The number of clusters associated with the selected volume, followed by the related alarm counts.
 
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Servers. The number of servers associated with the selected volume, followed by the related alarm counts.
 
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Virtual Machines. The number of virtual machines that are associated with the selected volume, followed by the related alarm counts.
 
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Volume. Represents the selected volume. Shows the counts of the alarms generated against the volume.
Where to go next
Drill down on:
 
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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 125. Clusters dwell
 
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Server. Displays the Servers dwell, showing the names and state of the servers associated with the selected volume.
Figure 126. Servers dwell
 
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Virtual Machines. Displays the Virtual Machines dwell, showing the names and states of all virtual machines that are associated with the selected volume.
Figure 127. Virtual Machines dwell
 
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Volume. Displays the Other Items Inventory dwell, showing the state of the selected volume.
Figure 128. Other Items Inventory dwell
 
 
Table 77. Resource Utilizations
Description
Shows the resource consumption for the selected volume.
Data displayed
•
Capacity. The total amount of volume space, including free and used space.
 
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Est. Time Until Full. The estimated amount of time after which the selected volume becomes full.
 
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Free. The amount of volume space that is available for use.
 
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Max File Size. The maximum file size on the selected volume.
 
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Percent Free. The percentage of volume space on the that is available for use.
 
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Type. The file system on the selected volume.
 
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URL. The URL to the selected volume.
 
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Used. The amount of volume space that is currently in use.
 
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Volume. The name of the selected volume, followed by the related alarm counts.
 
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Weekly Growth Rate. The projected amount of the volume space that becomes in use on a weekly basis.
Where to go next
Drill down on:
 
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Free or Used. Displays the Logical Drive Utilization dialog box.
Figure 129. Logical Drive Utilization dialog box
 
•
Percent Free. Displays the Storage Used dialog box.
Figure 130. 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 131. Volume view
This view is made up of the following embedded views:
•
Cluster Shared Volume Performance
•
Cluster Shared Volume Total I/O and Latency
 
Table 78. Cluster Shared Volume Performance
Description
Shows the amount of the volume I/O resources used by the virtual machines associated with the selected volume.
Data displayed
•
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.
 
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VM Offenders, Hyper-V Server. The name of the Hyper-V server on which the virtual machine is running.
 
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VM Offenders, I/O. The rate at which the virtual machine writes to and reads from the volume.
 
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VM Offenders, IOps. The number of disk read and write operations the virtual machine performed from the beginning of the selected time range.
 
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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.
 
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VM Offenders, Name. The name of the virtual machine.
Where to go next
Drill down on:
 
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VM Offenders, Hyper-V Server. Shows the Hyper-V server details in the Hyper-V Explorer Summary tab.
 
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VM Offenders, Name. Shows the virtual machine details in the Hyper-V Explorer Summary tab.
 
Table 79. Cluster Shared Volume Total I/O and Latency
Description
Displays the data transfer rates and latency detected for the selected volume.
Data displayed
•
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.
 
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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.
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Virtual Switches view
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Summary - All Virtual Switches view
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Summary - Virtual Switch view
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Virtual Switch Topology 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 132. 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.
 
Table 80. Description of the View
Data displayed
•
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.
Where to go next
Drill down on:
 
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All Volumes. Shows the Summary - All Virtual Switches view in the Quick-View.
 
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Volume. Shows the Summary - Virtual Switch view in the Quick-View.
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