diff --git a/collector/pkg/collector/metrics.go b/collector/pkg/collector/metrics.go
index 5d453dd..10bb98d 100644
--- a/collector/pkg/collector/metrics.go
+++ b/collector/pkg/collector/metrics.go
@@ -4,6 +4,12 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
+	"net/url"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+
 	"github.com/analogj/scrutiny/collector/pkg/common/shell"
 	"github.com/analogj/scrutiny/collector/pkg/config"
 	"github.com/analogj/scrutiny/collector/pkg/detect"
@@ -11,10 +17,6 @@ import (
 	"github.com/analogj/scrutiny/collector/pkg/models"
 	"github.com/samber/lo"
 	"github.com/sirupsen/logrus"
-	"net/url"
-	"os"
-	"os/exec"
-	"strings"
 )
 
 type MetricsCollector struct {
@@ -90,8 +92,9 @@ 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)
+			if mc.config.GetInt("commands.metrics_smartctl_wait") > 0 {
+				time.Sleep(time.Duration(mc.config.GetInt("commands.metrics_smartctl_wait")) * time.Second)
+			}
 		}
 
 		//mc.logger.Infoln("Main: Waiting for workers to finish")
@@ -113,7 +116,7 @@ func (mc *MetricsCollector) Validate() error {
 	return nil
 }
 
-//func (mc *MetricsCollector) Collect(wg *sync.WaitGroup, deviceWWN string, deviceName string, deviceType string) {
+// func (mc *MetricsCollector) Collect(wg *sync.WaitGroup, deviceWWN string, deviceName string, deviceType string) {
 func (mc *MetricsCollector) Collect(deviceWWN string, deviceName string, deviceType string) {
 	//defer wg.Done()
 	if len(deviceWWN) == 0 {
diff --git a/collector/pkg/config/config.go b/collector/pkg/config/config.go
index 501a89c..d44a54b 100644
--- a/collector/pkg/config/config.go
+++ b/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)
 
 	//configure env variable parsing.
 	c.SetEnvPrefix("COLLECTOR")
diff --git a/example.collector.yaml b/example.collector.yaml
index d1fc9f1..0469610 100644
--- a/example.collector.yaml
+++ b/example.collector.yaml
@@ -81,6 +81,7 @@ devices:
 #  metrics_scan_args: '--scan --json' # used to detect devices
 #  metrics_info_args: '--info --json' # used to determine device unique ID & register device with Scrutiny
 #  metrics_smart_args: '--xall --json' # used to retrieve smart data for each device.
+#  metrics_smartctl_wait: 0 # time to wait in seconds between each disk's check
 
 
 ########################################################################################################################