Add a wait between disks checks

collector/pkg/collector/metrics.go

@@ -15,6 +15,7 @@ import (
 	"os"
 	"os/exec"
 	"strings"
+	"time"
 )
 
 type MetricsCollector struct {
@@ -90,8 +91,7 @@ func (mc *MetricsCollector) Run() error {
 			//go mc.Collect(&wg, device.WWN, device.DeviceName, device.DeviceType)
 			mc.Collect(device.WWN, device.DeviceName, device.DeviceType)
 
-			// TODO: we may need to sleep for between each call to smartctl -a
-			//time.Sleep(30 * time.Millisecond)
+			time.Sleep(time.Duration(mc.config.GetInt("commands.metrics_smartctl_wait")) * time.Millisecond)
 		}
 
 		//mc.logger.Infoln("Main: Waiting for workers to finish")

collector/pkg/config/config.go

@@ -47,6 +47,7 @@ func (c *configuration) Init() error {
 	c.SetDefault("commands.metrics_scan_args", "--scan --json")
 	c.SetDefault("commands.metrics_info_args", "--info --json")
 	c.SetDefault("commands.metrics_smart_args", "--xall --json")
+	c.SetDefault("commands.metrics_smartctl_wait", 0)
 
 	//c.SetDefault("collect.short.command", "-a -o on -S on")