# AS Metrics

#### Function

This section describes metrics reported by AS to Cloud Eye as well as their namespaces and dimensions. You can use APIs provided by Cloud Eye to view the AS metrics and the alarms generated by Cloud Eye for AS.

#### Namespace

SYS.AS

#### Metrics

Metric | Name | Description | Value Range | Remarks
--- | --- | --- | --- | ---
cpu_util | CPU Usage | Average CPU usage of all instances in a monitored object | ≥ 0% | The monitored object is an AS group.
mem_util | Memory Usage | Average memory usage of all instances in a monitored object | ≥ 0% | The monitored object is an AS group. NOTE: This metric is unavailable if the image has no OTC Tools installed.
network_incoming_bytes_rate_inband | Inband Incoming Rate | Average number of incoming bytes per second on all instances in a monitored object | ≥ 0 | The monitored object is an AS group.
network_outgoing_bytes_rate_inband | Inband Outgoing Rate | Average number of outgoing bytes per second on all instances in a monitored object | ≥ 0 | The monitored object is an AS group.
instance_num | Number of Instances | Number of available instances in a monitored object | ≥ 0 | The monitored object is an AS group. Available ECSs are INSERVICE instances in an AS group.
disk_read_bytes_rate | Disks Read Rate | Number of bytes read from all instances in a monitored object per second | ≥ 0 | The monitored object is an AS group.
disk_write_bytes_rate | Disks Write Rate | Number of bytes written to all instances in a monitored object per second | ≥ 0 | The monitored object is an AS group.
disk_read_requests_rate | Disk Read Requests | Number of read requests sent to all instances in a monitored object per second | ≥ 0 | The monitored object is an AS group.
disk_write_requests_rate | Disks Write Requests | Number of write requests sent to all instances in a monitored object per second | ≥ 0 | The monitored object is an AS group.

- The image based on which the target ECS is created must have OTC Tools installed. Otherwise, the Memory Usage and Disk Usage metrics are unavailable. For details about how to install the OTC Tools, visit https://github.com/UVP-Tools/UVP-Tools/.
- For details about whether your OS supports the Memory Usage, Inband Outgoing Rate, and Inband Incoming Rate metrics, see Elastic Cloud Server User Guide.

#### Dimension

Key | Value
--- | ---
AutoScalingGroup | AS group ID

Parent topic: Appendix