Red Hat Virtualization Server - Virtual Machines


Monitored Parameters

The virtual machines (VMs) present in a RHV server are monitored based on the parameters or the attributes listed below. These attributes provide information about the functioning of the VMs. You can also configure thresholds to the numerical attributes of the VMs based on these details. 

The Availability tab lists all the virtual machines present in the RHV servers and their availability status. You can also view Availability history of the virtual machines for the past 24 hours or 30 days. The Performance tab shows some key performance indicators of the virtual machine including CPU Utilization, Memory Utilization, Disk I/O Utilization and Network Utilization along with heat charts for these attributes. This tab also shows the health status and events for the past 24 hours or 30 days. 

The List view displays all the virtual machines discovered under each RHV server. This view provides an overall idea of the availability and health of all the virtual machines. The list view also enables you to perform bulk admin configurations. Click on the individual virtual machines listed to view detailed VM metrics. 

The Top Virtual Machines tab shows graphs for the top CPU consumers, top memory consumers, top disk I/O consumers, and top network consumers of the RHV server. This section enables you to find out which virtual machines are consuming your server resources and take action accordingly. 

Click on the individual monitors listed in the Availability tab to view detailed performance metrics of the corresponding virtual machine. These metrics are categorized into five separate tabs for easy understanding. Below is an explanation of the metrics shown in these tabs:

Overview 

This tab provides a high-level overview of virtual machines running under RHV servers. 

ParameterDescription
CPU & Memory Utilization
CPU Utilization The current CPU utilization value on the virtual machine. (%)
Memory Utilization The amount of memory consumed by the virtual machine. (%)

Memory 

This tab provides details about the memory utilization of virtual machines running under RHV servers. 

ParameterDescription
Used Memory The amount of memory consumed by the virtual machine. (GB)
Buffered Memory The amount of memory buffered by the virtual machine. (GB)
Total Memory The total amount of memory available for the virtual machine. (GB)
Free Memory The remaining amount of memory available for the virtual machine. (GB)
Configured Memory The amount of memory configured or allocated for the virtual machine. (GB)
Swap Cached Memory The amount of swap memory that is cached by the virtual machine. (GB)

Network

This tab provides details about network utilization of virtual machines running under RHV servers.

ParameterDescription
Network Details
Name The name of the network interface.
Data Received Rate The rate at which the network receives data. (Kbps)
Data Transmitted Rate The rate at which the network transmits data. (Kbps)
Data Received The amount of data received by the network. (Kb)
Data Transmitted The amount of data transmitted from the network. (Kb)
Received Errors The number of errors occurred when the data is received by the network.
Transmit Errors The number of errors occurred when the data is transmitted from the network.

Disk I/O

This tab provides details about disk I/O of virtual machines running under RHV servers. 

ParameterDescription
Disk Details
Disk ID The value of LUN ID for the disk. 
Disk Read Rate The rate at which the data is read from the disk. (Kbps)
Disk Write Rate The rate at which the data is written to the disk. (Kbps)
Read Latency The amount of time taken by the disk to read data. (Sec)
Write Latency The amount of time taken by the disk to write data. (Sec)
Flush Latency The amount of time taken by the disk to flush data. (Sec)

Configuration

This tab provides the configuration details of virtual machines running under RHV servers. 

ParameterDescription
UUID The value of Universal Unique Identifier of the virtual machine.
OS Name The name of the OS installed on this virtual machine.
Status The current status of the virtual machine. (UP or DOWN)
IP Address The value of IP address of the virtual machine.
Host Name The host name of the virtual machine.
Boot Time The latest boot time of the virtual machine.
CPU Cores The number of CPU cores available.
CPU Sockets The number of sockets available for the CPU.
CPU Threads The number of threads available for the CPU.