ECS Metrics

You do not need to install the Agent on an ECS to check basic monitoring metrics. The monitoring data is available in minutes after an ECS starts running.

Basic monitoring metric data is reported every 5 minutes.

ECS metrics vary depending on ECS OSs and types. For details, see Table 1. √ indicates that the metric is supported, and x indicates that the metric is not supported.

**Table 1** Supported ECS metrics
Metric	Windows ECS		Linux ECS
N/A	Xen	KVM	Xen	KVM
CPU Usage	√	√	√	√
Memory Usage	√	√	√ (VMTools must be installed on the image. Otherwise, this metric is unavailable.)	x (Not supported)
Disk Usage	√	√	√ (VMTools must be installed on the image. Otherwise, this metric is unavailable.)	x (Not supported)
Disks Read Rate	√	√	√	√
Disks Write Rate	√	√	√	√
Disks Read Requests	√	√	√	√
Disks Write Requests	√	√	√	√
Inband Incoming Rate	√	√	√ (VMTools must be installed on the image. Otherwise, this metric is unavailable.)	x (Not supported)
Inband Outgoing Rate	√	√	√ (VMTools must be installed on the image. Otherwise, this metric is unavailable.)	x (Not supported)
Outband Incoming Rate	√	√	√	√
Outband Outgoing Rate	√	√	√	√
System Status Check Failed	√	×	√	×

Certain ECS metrics require the installation of VMTools on the image, based on which the ECS is created. For instructions about how to install VMTools, see https://github.com/UVP-Tools/UVP-Tools/.

Table 2 describes these ECS metrics.

**Table 2** Metric description
Metric	Parameter	Description	Value Range	Monitored Object	Monitoring Interval (Raw Metrics and KVM Only)
cpu_util	CPU Usage	CPU usage of an ECS Unit: Percent Formula: CPU usage of an ECS/Number of vCPUs in the ECS	≥ 0	ECS	5 minutes
mem_util	Memory Usage	Memory usage of an ECS This metric is unavailable if the image has no VMTools installed. Unit: Percent Formula: Used memory of an ECS/Total memory of the ECS	≥ 0	ECS	5 minutes
disk_util_inband	Disk Usage	Disk usage of an ECS This metric is unavailable if the image has no VMTools installed. Unit: Percent Formula: Used capacity of an ECS disk/Total capacity of the ECS disk	≥ 0	ECS	5 minutes
disk_read_bytes_rate	Disk Read Bandwidth	Number of bytes read from an ECS disk per second Unit: byte/s Formula: Total number of bytes read from an ECS disk/Monitoring interval byte_out = (rd_bytes - last_rd_bytes)/Time difference	≥ 0	ECS	5 minutes
disk_write_bytes_rate	Disk Write Bandwidth	Number of bytes written to an ECS disk per second Unit: byte/s Formula: Total number of bytes written to an ECS disk/Monitoring interval	≥ 0	ECS	5 minutes
disk_read_requests_rate	Disk Read IOPS	Number of read requests sent to an ECS disk per second Unit: request/s Formula: Total number of read requests sent to an ECS disk/Monitoring interval req_out = (rd_req - last_rd_req)/Time difference	≥ 0	ECS	5 minutes
disk_write_requests_rate	Disk Write IOPS	Number of write requests sent to an ECS disk per second Unit: request/s Formula: Total number of write requests sent to an ECS disk/Monitoring interval req_in = (wr_req - last_wr_req)/Time difference	≥ 0	ECS	5 minutes
network_incoming_bytes_rate_inband	Inband Incoming Rate	Number of incoming bytes on an ECS per second Unit: byte/s Formula: Total number of inband incoming bytes on an ECS/Monitoring interval	≥ 0	ECS	5 minutes
network_outgoing_bytes_rate_inband	Inband Outgoing Rate	Number of outgoing bytes on an ECS per second Unit: byte/s Formula: Total number of inband outgoing bytes on an ECS/Monitoring interval	≥ 0	ECS	5 minutes
network_incoming_bytes_aggregate_rate	Outband Incoming Rate	Number of incoming bytes on an ECS per second on the hypervisor Unit: byte/s Formula: Total number of outband incoming bytes on an ECS/Monitoring interval This metric is unavailable if SR-IOV is enabled.	≥ 0	ECS	5 minutes
network_outgoing_bytes_ aggregate_rate	Outband Outgoing Rate	Number of outgoing bytes on an ECS per second on the hypervisor Unit: byte/s Formula: Total number of outband outgoing bytes on an ECS/Monitoring interval This metric is unavailable if SR-IOV is enabled.	≥ 0	ECS	5 minutes
inst_sys_status_error	System Status Check Failed	Status of the cloud platform for running ECSs, which can be 0 or 1 0: The system is running properly. All check items are normal. 1: The system is not running properly. At least one check item failed. When the power source of the physical server fails or the hardware/software becomes faulty, the check result is 1. The system periodically checks the status and returns check results using value 0 or 1. If the detected fault does not affect ECS functions, certain management operations performed on the ECS, such as starting, stopping, or specifications modifications, may be affected. If the detected fault affects ECS functions, such as a server power supply failure, the system will recover the ECS as soon as possible.	0 or 1	ECS	5 minutes