Basic ECS Metrics

Description

This section describes basic monitoring metrics reported by ECS to Cloud Eye. You can use Cloud Eye to view these metrics and alarms generated for ECSs.

Namespace

SYS.ECS

Basic ECS Metrics

Basic ECS metrics vary depending on ECS OSs and types. For details, see Table 1.

Certain ECS metrics require the installation of UVP VMTools on the image from which the ECS is created. For details about how to install UVP VMTools, see https://github.com/UVP-Tools/UVP-Tools/.
Certain ECS metrics require the installation of the Agent on the ECS. After the Agent is installed, log in to the management console and choose Cloud Eye under Management & Deployment. On the Cloud Eye console, choose Server Monitoring > Elastic Cloud Server from the left navigation pane to view ECS metrics, such as AGT. User Space CPU Usage. For details, see OS Monitoring Metrics Supported by ECSs with the Agent Installed.
- For details about how to install the Agent on a Linux ECS, see "Installing and Configuring the Agent (Linux)" in Cloud Eye User Guide.

**Table 1** Basic ECS metrics
Metric	LinuxECS
None	Xen	KVM
CPU Usage	Supported	Supported
Memory Usage	Supported (UVP VMTools must be included in the image. Otherwise, this metric is unavailable.)	Not supported
Disk Usage	Supported (UVP VMTools must be included in the image. Otherwise, this metric is unavailable.)	Not supported
Disk Read Bandwidth	Supported	Supported
Disk Write Bandwidth	Supported	Supported
Disk Read IOPS	Supported	Supported
Disk Write IOPS	Supported	Supported
Inband Incoming Rate	Supported (UVP VMTools must be included in the image. Otherwise, this metric is unavailable.)	Not supported
Inband Outgoing Rate	Supported (UVP VMTools must be included in the image. Otherwise, this metric is unavailable.)	Not supported
Outband Incoming Rate	Supported (If UVP VMTools is included in the image, this metric is unavailable. In such a case, use the inband incoming rate.)	Supported
Outband Outgoing Rate	Supported (If UVP VMTools is included in the image, this metric is unavailable. In such a case, use the inband outgoing rate.)	Supported
Inbound Bandwidth	Supported (If UVP VMTools is included in the image, this metric is unavailable. In such a case, use the inband outgoing rate.)	Supported
Outbound Bandwidth	Supported (If UVP VMTools is included in the image, this metric is unavailable. In such a case, use the inband outgoing rate.)	Supported
Inbound PPS	Supported (If UVP VMTools is included in the image, this metric is unavailable. In such a case, use the inband outgoing rate.)	Supported
Outbound PPS	Supported (If UVP VMTools is included in the image, this metric is unavailable. In such a case, use the inband outgoing rate.)	Supported
New Connections	Supported (If UVP VMTools is included in the image, this metric is unavailable. In such a case, use the inband outgoing rate.)	Supported

Table 2 describes these basic ECS metrics.

The monitoring intervals for the following ECSs with raw monitoring metrics are as follows:

Xen ECSs: 4 minutes
KVM ECSs: 5 minutes

**Table 2** Basic metric description
Metric ID	Parameter	Description	Value Range	Monitored Object & Dimension	Monitoring Interval (Raw Metrics and KVM Only)
cpu_util	CPU Usage	CPU usage of an ECS This metric is used to show the CPU usage of the physical server accommodating the monitored ECS, which is not accurate as the CPU usage obtained on the monitored ECS. For details, see Why Is Basic Monitoring Data Inconsistent with Data Monitored by the OS? 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 UVP VMTools installed. Unit: Percent Formula: Used memory of an ECS/Total memory of the ECS NOTE: The memory usage of QingTian ECSs cannot be monitored.	≥ 0	ECS	5 minutes
disk_util_inband	Disk Usage	Disk usage of an ECS This metric is unavailable if the image has no UVP VMTools installed. Unit: Percent Formula: Used capacity of an ECS-attached disk/Total capacity of the ECS-attached disk	≥ 0	ECS	5 minutes
disk_read_bytes_rate	Disk Read Bandwidth	Number of bytes read from an ECS-attached disk per second Unit: byte/s Formula: Total number of bytes read from an ECS-attached 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-attached disk per second Unit: byte/s Formula: Total number of bytes written to an ECS-attached disk/Monitoring interval	≥ 0	ECS	5 minutes
disk_read_requests_rate	Disk Read IOPS	Number of read requests sent to an ECS-attached disk per second Unit: request/s Formula: Total number of read requests sent to an ECS-attached 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-attached disk per second Unit: request/s Formula: Total number of write requests sent to an ECS-attached 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
network_vm_connections	Network Connections	Total number of TCP and UDP connections to an ECS Unit: count NOTE: This metric is collected out-of-band and its value may be greater than the number of network connections queried in the OS.	≥ 0	ECS	5 minutes
network_vm_bandwidth_in	Inbound Bandwidth	Number of public and private bits received by the ECS per second Unit: byte/s	≥ 0	ECS	5 minutes
network_vm_bandwidth_out	Outbound Bandwidth	Number of public and private bits sent by the ECS per second Unit: byte/s	≥ 0	ECS	5 minutes
network_vm_pps_in	Inbound PPS	Number of public and private packets received by the ECS per second Unit: packet/s	≥ 0	ECS	5 minutes
network_vm_pps_out	Outbound PPS	Number of public and private packets sent by the ECS per second Unit: packet/s	≥ 0	ECS	5 minutes
network_vm_newconnections	New Connections	Number of new connections (including TCP, UDP, and ICMP) created on the ECS Unit: count	≥ 0	ECS	5 minutes