Alarm Description

This alarm is generated when the disk read rate of an Elastic Volume Service (EVS) disk exceeds the threshold specified by the administrator.

The threshold can be manually set on the Monitoring Center > Monitoring Configuration > Performance Threshold Maintenance page.

Alarm Attribute

There are four severity levels of PerfMonitor threshold-crossing alarms, including critical, major, minor, and warning. The four levels of alarms are handled in the same way.

Alarm Parameters

Impact on the System

System functions may be unavailable.

Possible Causes

The threshold settings are inappropriate.

Handling Procedure

1. Check the threshold settings of the monitoring indicator.
   1. Choose Monitoring Center > Monitoring Configuration from the main menu. In the navigation pane, choose Performance Threshold Maintenance.
   2. On the Performance Threshold Maintenance page, locate the row that contains the target monitoring indicator.
   3. Click to check whether the threshold settings are appropriate.
      • If yes, go to 3.
      • If no, go to 2.

2. Modify the alarm threshold policy of the indicator.
   1. Modify the alarm threshold based on the actual indicator data.
   2. Wait for 5 minutes, choose Alarms > Current Alarms from the main menu, and check whether the alarm is cleared.
      • If yes, no further action is required.
      • If no, go to 3.

3. If services are running properly, contact service O&M personnel to expand or migrate services. In other cases, contact technical support for assistance.

Alarm Clearance

When the fault is rectified, the system will automatically clear the alarm. Manual clearing is not required.

Related Information

None