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Viewing EVS Monitoring Data

Updated on 2024-03-26 GMT+08:00

Description

This section describes monitored metrics reported by EVS to Cloud Eye as well as their namespaces and dimensions. You can use the console or APIs provided by Cloud Eye to query the metrics of the monitored objects and alarms generated for EVS.

Namespace

SYS.EVS

Metrics

Table 1 EVS metrics

Metric ID

Metric Name

Description

Value Range

Monitored Object

Monitoring Period

disk_device_read_bytes_rate

Disk Read Bandwidth

Number of bytes read from the monitored disk per second

Unit: Bytes/s

≥ 0 bytes/s

EVS disk

5 minutes in average

disk_device_write_bytes_rate

Disk Write Bandwidth

Number of bytes written to the monitored disk per second

Unit: Bytes/s

≥ 0 bytes/s

EVS disk

5 minutes in average

disk_device_read_requests_rate

Disk Read IOPS

Number of read requests sent to the monitored disk per second

Unit: Requests/s

≥ 0 Requests/s

EVS disk

5 minutes in average

disk_device_write_requests_rate

Disk Write IOPS

Number of write requests sent to the monitored disk per second

Unit: Requests/s

≥ 0 Requests/s

EVS disk

5 minutes in average

disk_device_queue_length

Average Queue Length

Average number of read or write requests waiting for processing in the monitoring period for the monitored disk

Unit: Count

≥ 0 Counts

EVS disk

5 minutes in average

disk_device_io_util

Disk I/O Utilization

Percentage of time spent during which read and write requests were sent to the monitored disk in the monitoring period

Unit: Percent

0-100%

EVS disk

5 minutes in average

disk_device_write_bytes_per_operation

Avg Disk Bytes Per Write

Average number of bytes transmitted per I/O write for the monitored disk in the monitoring period

Unit: Kbyte/operation

≥ 0 KiB/op

EVS disk

5 minutes in average

disk_device_read_bytes_per_operation

Avg Disk Bytes Per Read

Average number of bytes transmitted per I/O read for the monitored disk in the monitoring period

Unit: Kbyte/operation

≥ 0 KiB/op

EVS disk

5 minutes in average

disk_device_write_await

Disk Write Await

Average await time per I/O write for the monitored disk in the monitoring period

Unit: ms/operation

≥ 0 ms/operation

EVS disk

5 minutes in average

disk_device_read_await

Disk Read Await

Average await time per I/O read for the monitored disk in the monitoring period

Unit: ms/operation

≥ 0 ms/operation

EVS disk

5 minutes in average

disk_device_io_svctm

Disk I/O Service Time

Average service time per I/O read or write for the monitored disk in the monitoring period

Unit: ms/operation

≥ 0 ms/operation

EVS disk

5 minutes in average

disk_device_io_iops_qos_num

IOPS Upper Limit Reached (Count)

Number of times that the IOPS of the monitored disk has reached the upper limit

Unit: Count

≥ 0 Counts

EVS disk

5 minutes in average

disk_device_io_iobw_qos_num

Bandwidth Upper Limit Reached (Count)

Number of times that the bandwidth of the monitored disk has reached the upper limit

Unit: Count

≥ 0 Counts

EVS disk

5 minutes in average

Dimension

Key

Value

disk_name

Server ID-drive letter, for example, 6f3c6f91-4b24-4e1b-b7d1-a94ac1cb011d-vda (vda is the drive letter)

Viewing Monitoring Data

  1. Log in to the management console.
  2. Under Storage, click Elastic Volume Service.

    The disk list page is displayed.

  3. In the EVS disk list, click the name of the disk you want to view the monitoring data.

    The disk details page is displayed.

  4. On the Attachments tab, locate the row that contains the server and click View Monitoring Data in the Operation column.

    The monitoring graphs page is displayed.

  5. View the disk monitoring data by metric or monitored duration.

    For more information about Cloud Eye, see the Cloud Eye User Guide.

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