Monitoring virtual machines

Prerequisites

To monitor virtual machine’s CPU, storage, and network usage

Select a virtual machine and open the Monitoring tab. The following performance charts are available for virtual machines:

CPU
CPU usage by the VM.
RAM
RAM usage by the VM.
Network interface: <network_name> / MAC: <mac_address>

The VM interface parameters:

  • Speed: the port transmit (TX) and receive (RX) speed, in bytes per second.
  • Packets: the number of TX and RX packets per second on the port.
  • Drop rate: the number of TX and RX packets dropped per second on the port.

To see a list of VM interfaces and hide all other charts, click Only network interfaces above the charts.

Volume: <volume_name> / <volume_id>

The VM disk parameters:

  • Storage read: the amount of data being read by the VM, in bytes and operations per second.
  • Storage write: the amount of data being written by the VM, in bytes and operations per second.
  • Read latency: the disk latency while reading data. Hovering the mouse cursor over a point on the chart, you can also see the average and maximum latency for that moment, as well as the 95 and 99 percentiles.
  • Write latency: the disk latency while writing data. Hovering the mouse cursor over a point on the chart, you can also see the average and maximum latency for that moment, as well as the 95 and 99 percentiles.
  • Flush latency: the disk latency while flushing data. Hovering the mouse cursor over a point on the chart, you can also see the average and maximum latency for that moment, as well as the 95 and 99 percentiles.

To see a list of VM disks and hide all other charts, click Only volumes above the charts.

Averaged values are calculated every five minutes.

The default time interval for the charts is twelve hours. To zoom into a particular time interval, select the interval with the mouse; to reset zoom, double-click any chart.