Each node is a virtual machine. You can monitor the load and performance of it by 10 metrics through the "Monitoring" tab.
Open the "Pools" tab, expand the pool menu and click the name of the node.
The virtual machine (your node) menu will appear. Open the "Monitoring" tab.
Buttons above the graphs control the display of statistics: the left one sets up what period to show, the right one — how often the data will be updated on the screen.
Please note: in terms of second metrics (for example, the number of bytes per second), Monitoring displays the average value per minute. The system collects the volume of traffic/operations per minute and divides it by 60.
You can monitor the state of the virtual machine using 10 metrics:
1. CPU Utilization is the load on the machine's CPU, measured as a percentage. For example, if all cores are 90% loaded, you will see a value of 90%.
2. RAM Utilization is the amount of RAM that the instance uses to perform tasks.
Measured in percentages, 100% means a full load of RAM.
Inside the system, you can see the RAM Utilization value that is less than in the Monitoring. This is normal: our Monitoring includes cache RAM in the statistics. This is unused RAM that the machine borrows and uses to make applications run smoother and faster. If some application needs more RAM, the system immediately brings it back from the cache.
3. Network BPS ingress is the speed of incoming traffic measured in bytes per second.
4. Network BPS egress is the speed of outgoing traffic measured in bytes per second.
5. Network PPS ingress is the speed of incoming traffic measured in packets per second.
6. Network PPS egress is the speed of outgoing traffic measured in packets per second.
7. sda/Disk IOPS read is the speed of reading information from the disk measured in the number of read operations per second.
8. sda/Disk IOPS write is the speed of writing information to the disk measured in the number of write operations per second.
9. sda/Disk BPS read is the speed of reading information from the disk measured in the number of transmitted bytes per second.
10. sda/Disk BPS write is the speed of writing information to the disk measured in the number of transmitted bytes per second.