Help Center/ Relational Database Service/ User Guide (Ally Region)/ FAQs/ Database Monitoring/ Which RDS Instance Metrics Do I Need to Pay Attention To?
Updated on 2026-04-24 GMT+08:00
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Which RDS Instance Metrics Do I Need to Pay Attention To?

You need to pay attention to CPU, memory, and storage space usage.

You can configure the system to report alarms based on service requirements and take measures to handle any reported alarms.

Configuration examples:

  • Configure RDS to report alarms if its CPU utilization reaches or exceeds a specific value (for example, 90%) multiple times (for example, 3 times) within a set period (for example, 5 minutes).
  • Configure RDS to report alarms if its memory utilization reaches or exceeds a specific value (for example, 90%) multiple times (for example, 4 times) within a set period (for example, 5 minutes).
  • Configure RDS to report alarms if its storage utilization reaches or exceeds a specific value (for example, 85%) multiple times (for example, 5 times) within a set period (for example, 5 minutes).

For details on Cloud Eye alarm configuration, see "Creating an Alarm Rule" in Cloud Eye User Guide.

Measures:

  • If a CPU or memory alarm is reported, you can scale up the vCPUs or memory by changing the DB instance class.

    For RDS for MySQL, see Changing a DB Instance Class.

    For RDS for PostgreSQL, see Changing a DB Instance Class.

  • If a storage space usage alarm is reported, you can:
    • Check the storage space consumption to see if any space can be freed up by deleting data from DB instances or by dumping the data to another system.
    • Scale up the storage space.

      For RDS for MySQL, see Scaling Up Storage Space.

      For RDS for PostgreSQL, see Scaling Storage Space.

Parent topic: Database Monitoring