Hyper-V Event Log
Hyper-V Event Log records virtual machine events received from configured monitors. Log file entries reflect event logs maintained on the given hypervisor host.
Each log message record contains the following data columns:
- . Date and time group for the event message.
- . Identifier (hostname or IP address) for the hypervisor.
- . Category for the event (Hyper-V-Config, for example)
- . Source log on the Hyper-V host.
- . Log message string.
: Hyper-V Event Log only returns log messages for hosts that have the appropriate WhatsVirtual listeners and event collection enabled. For more details, see Enable WhatsVirtual Event Listeners.
Fetch and filter log data
. Choose one or more host devices.
Use the Select Device dialog for one of the following:
Control
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Purpose
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Device 
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Browse and choose a single device.
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Single Interface 
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Choose an interface on a device.
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Device Group 
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Choose an existing group of one or more devices. You can also create custom or dynamic groups.
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: You can organize devices into custom or dynamic groups. For more information, see Grouping Devices.
.
Choose specific windows for log data, or choose for the latest.
Choose time constraints for data view
Control
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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.
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.
Select rows based on specific column values, remove columns, and remove noise and chaff from the table.
Filter and pick by column
Click a report heading
and use the following from the drop down list:
Control
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Purpose
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Sort. 
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Sort column in ascending or descending order.
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Columns. 
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Pick the columns you want to view. Click a check box to display the column. Clear the check box to hide it.
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Group by this field.
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Group table into collapsible rows wherever the current column contains identical data ("field") values.
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Filters.
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Provide a keyword to view only rows that contain the keyword for this column.
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Email, print, share, and export
Hyper-V Event Log log data can be exported, reused, and distributed.