> 80% 案例例2 告警规则: 磁盘容量量可⽤用率 <10% 告警规则: 磁盘容量量预计将于3⼩小时后饱和 0 now -1h +3h predict_linear(node_filesystem_free{}[1h], 3 * 3600) < 0 异常检测 异常流量量 abs(requests - requests:holt_winters_rate1h offset 7d)