Disable a metric for a CI

Operational Metrics can be configured to collect significant amounts of data, some of which might not be necessary. To improve performance, you can disable a specific metric for a specific CI to stop processing data related to the specified metric and CI.

Before you begin

Role required: evt_mgmt_admin

About this task

Metric to CI Mappings records are automatically generated and remain in effect for 24 hours (by default, if mapping to the CI is not found), or for 5 days (by default, if mapping to the CI is found). Later, if within that time period raw data arrives for a metric/CI pair that already has a record, the existing mapping is used to match the data to an existing CI. After Metric to CI Mappings records expire, incoming new raw data requires re-mapping. These records expire when:
  • The 24-hour or 5-day cycle ends.
  • An event rule has changed - This triggers an immediate expiration of the respective mapping record.

Adjusting mappings to reflect the addition or removal of CIs by Discovery, takes effect only upon the beginning of the next cycle.

Operational Metrics supports up to 200,000 active metrics.

Note: The Active setting (true or false) for a source metric in the Monitoring System Metric Types [sa_source_metric_type] table takes precedence over the setting for the corresponding metric in the Metric To CI Mappings [sa_metric_map] table. If a source metric type in the Monitoring System Metric Types [sa_source_metric_type] table is disabled, all records related to the corresponding metrics are removed from the Metric To CI Mappings [sa_metric_map] table.

Procedure

  1. Navigate to Event Management > Operational Metrics > Metric to CI.
    Metric to CI Mappings displays all metrics per each CI based on event rules. If appropriate, This breakdown of some metric types is included. For example, a 'disk space' metric for a CI with multiple disks, breaks down to two metrics collected for the CI: 'Disk C - disk space' and 'Disk D- disk space'.
  2. Locate the record for the metric/CI that you want to disable, and set its Active column to false.