Alert noise reduction: threshold tuning

Overview

Alerts nobody trusts become ignored—tune like a product.

Process

Weekly sampling: top noisy alerts → root cause → threshold/suppress with expiry.

Patterns

Disk warnings at 15% free on database volumes may be too early—match workload growth curves.

Governance

Noise reduction changes ticketed; peer-reviewed if suppress >24h.

Goal

<5% alert volume classified “false positive” after 90 days tuning per client.