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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

Summary - All Virtual Switches view

The Summary - All Virtual Switches view displays overall resource utilization information for a group of virtual switches and identifies the ones that consume the highest amounts of system resources, potentially causing performance bottlenecks.
This view appears in the Quick-View on the left when you select All Virtual Switches in the Virtual Environment view.
Figure 133. Summary - All Virtual Switches view
This view is made up of the following embedded views:
•
Alarms
•
Top Bandwidth Consumers
•
The Highest Number of Ports
•
Top Overall Utilization
•
Top Packets per Second
 
 
Table 81. Alarms
Description
Lists the alarms generated against the monitored virtual switches.
Data displayed
•
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.
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 134. Alarm dialog box
 
Table 82. Top Bandwidth Consumers
Description
Identifies the virtual switches with the highest percentage of network utilization.
Data displayed
•
Top Bandwidth Consumers chart. For each identified virtual switch, the chart displays the percentage of network resources available to it that are in use over the selected time period.
 
•
Utilization. The percentage of network resources available to the virtual switch that is currently in use.
 
•
Virtual Switches. The name of the virtual switch identified amongst top bandwidth consumers.
Where to go next
Drill down on:
 
•
Virtual Switch or Utilization. Shows the virtual switch details in the Summary - Virtual Switch view.
 
Table 83. The Highest Number of Ports
Description
Identifies the virtual switches with the highest numbers of available ports.
Data displayed
•
Ports. The number of ports available on the virtual switch.
 
•
The Highest Number of Ports chart. For each identified virtual switch, the chart displays the number of available ports.
 
•
Virtual Switches. The name of the virtual switch.
Where to go next
Drill down on:
 
•
Virtual Switch or Ports. Shows the virtual switch details in the Summary - Virtual Switch view.
 
Table 84. Top Overall Utilization
Description
Identifies the virtual switches with the highest network transfer rates.
Data displayed
•
Throughput. The current rate of network throughput for the selected virtual switch.
 
•
Top Overall Utilization chart. For each identified virtual switch, the chart displays the network throughput rate over the selected time period.
 
•
Virtual Switches. The name of the virtual switch identified amongst top network consumers.
Where to go next
Drill down on:
 
•
Virtual Switch or Throughput. Shows the virtual switch details in the Summary - Virtual Switch view.
 
Table 85. Top Packets per Second
Description
Identifies the virtual switches with the highest data packet traffic.
Data displayed
•
Packets per Second. The average rate of the data packets that are sent to the virtual switch.
 
•
Top Packets per Second chart. Identifies the virtual switches with the highest rates of data packet traffic over the selected time period.
 
•
Virtual Switches. The name of the virtual switch identified as having a high rate of data packet traffic.
Where to go next
Drill down on:
 
•
Virtual Switch or Packets per Second. Shows the virtual switch details in the Summary - Virtual Switch view.

Summary - Virtual Switch view

The Summary - Virtual Switch view illustrates the overall network utilization and the levels of overall network traffic for a selected virtual switch.
This view appears in the Quick-View on the left when you select a virtual switch in the Virtual Switches view.
This view is made up of the following embedded views:
•
Alarms
•
Packets Per Second
•
Product Information
•
Related Items
•
Top VMs
 
Table 86. Alarms
Description
Lists the alarms generated against the selected virtual switch.
Data displayed
•
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.
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.
 
Table 87. Packets Per Second
Description
Displays the utilization of the selected switch expressed thorough the rate of data packets it receives. This view illustrates the overall switch efficiency.
Data displayed
•
Utilization chart, Avg Utilization. The average percentage of the network resources available to the switch that are in use over the selected time period.
 
•
Utilization chart, Packets per Second. The average rate of the data packets that are sent to the virtual switch over the selected time period.
 
•
Utilization table, Average Utilization. The average percentage of the network resources available to the switch that are currently in use.
 
•
Utilization table, Packets per Second. The average rate of the data packets that are sent to the virtual switch.
 
•
Utilization table, Sum Throughput. The current rate of network throughput for the selected switch.
Where to go next
Drill down on:
 
•
Utilization chart. Displays the Utilization dialog box.
Figure 135. Utilization dialog box
 
Table 88. Product Information
Description
Shows the name of the selected virtual switch along with some basic configuration information.
Data displayed
•
Ports. The number of ports that are available for use on the selected virtual switch.
 
•
Type. The type of the switch: Virtual Switch.
 
Table 89. Related Items
Description
Shows the numbers and states of the objects in your environment associated with the selected virtual switch.
Data displayed
•
Clusters. The number of clusters associated with the selected virtual switch, followed by the related alarm counts.
 
•
Servers. The number of servers associated with the selected virtual switch, followed by the related alarm counts.
 
•
Virtual Machines. The number of virtual machines that are associated with the selected virtual switch, followed by the related alarm counts.
 
•
Virtual Switch. Represents the selected virtual switch. Shows the counts of alarm generated against the switch.
Where to go next
Drill down on:
 
•
Clusters. Displays the Clusters dwell, showing the names and states of all clusters that are associated with the selected virtual switch.
Figure 136. Clusters dwell
 
•
Servers. Displays the Servers dwell, showing the names and state of the servers associated with the selected virtual switch.
Figure 137. Servers dwell
 
•
Virtual Machines. Displays the Virtual Machines dwell, showing the names and states of all virtual machines that are associated with the selected virtual switch.
Figure 138. Virtual Machines dwell
 
•
Virtual Switch. Displays the Other Items Inventory dwell, showing the state of the selected virtual switch.
Figure 139. Other Items Inventory dwell
 
Table 90. Top VMs
Description
Identifies the virtual machines whose network traffic is managed by the selected virtual switch that have the highest network transfer rate.
Data displayed
•
Key. An indicator of how virtual machine ranks in the list of top consumers.
 
•
Receiving. The average inbound data transfer rate for the virtual machine.
 
•
Sending. The average outbound data transfer rate for the virtual machine.
 
•
Top VM chart, Receive Rate. The average inbound data transfer rate for the monitored switch over the selected time period.
 
•
Top VM chart, Send Rate. The average outbound data transfer rate for the monitored switch over the selected time period.
 
•
Virtual Machine. The name of the virtual machine identified amongst top network consumers.

Virtual Switch Topology view

A typical Hyper-V environment consists of many interrelated components. Understanding the dependencies between virtual switches and other components of your monitored environment allows you to better understand resource-related issues, potentially affecting the stability of your system. This can help you predict the impact a potential outage may have on your environment, and to prevent such events, by reallocating resources where they are most needed.
The Virtual Switch Topology View visualizes the relationships between the objects in your environment through an interactive map. The map illustrates how different components relate to each other, and the levels of the available resources available to them.
This view appears in the display area when you click View Topology In the Summary - Virtual Switch view.
Figure 140. Virtual Switch Topology view
The complexity of the information appearing in a dependency map depends on the selected object and the dependencies that object has with other objects within your integrated infrastructure.
In a large multi-component environment, dependency maps are likely complex and may not fit your screen. The NAVIGATOR in the top-right corner allows you to easily set the zoom level by dragging the slider into the appropriate position.
Figure 141. Navigator view
In a dependency map, some objects are represented with container tiles, others with single-object tiles or just icons. Every object in the map includes an indicator of its health.
Figure 142. Object health indicators
Dependencies between the objects in a map are illustrated with single-directional arrows. The color of the arrow reflects the alarm state of the target object: gray for Normal, yellow for Warning, orange for Critical, and red for the Fatal state.
Figure 143. Object dependencies
To find out more about an object appearing in the dependency map, click the object icon. A dwell appears, displaying more details about that object. The type and range of information appearing in the dialog box depends on the selected object’s type. For example, drilling down on a virtual switch shows the switch name, alarm counts top virtual machine consumers, levels of traffic utilization, percentage of packet loss, current traffic types, available bandwidth, the numbers of available and all ports, and the number of active versus standby NICs.
Figure 144. Virtual switch drilldown

About frequently asked questions

The Hyper-V Environment dashboard contains the FAQts tab that you can use to ask questions about your monitored systems and review the answers. In the Categories pane, the FAQts view shows several question categories. Clicking a category shows the questions belonging to that category in the Questions pane. From there, clicking a question shows the answer on the right.
Figure 145. FAQts tab
This tab also appears in the Hyper-V Explorer. For reference information about this tab, see Hyper-V Explorer FAQts.
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