diff --git a/metrics/metrics.go b/metrics/metrics.go
index 1087b3dec..626f12aad 100644
--- a/metrics/metrics.go
+++ b/metrics/metrics.go
@@ -56,6 +56,7 @@ const (
 	KIND_REDIS                  = "REDIS"
 	KIND_SENTINEL               = "SENTINEL"
 	APPLY_REDIS_CONFIG          = "APPLY_REDIS_CONFIG"
+	APPLY_EXTERNAL_MASTER       = "APPLY_EXT_MASTER_ALL"
 	APPLY_SENTINEL_CONFIG       = "APPLY_SENTINEL_CONFIG"
 	MONITOR_REDIS_WITH_PORT     = "SET_SENTINEL_TO_MONITOR_REDIS_WITH_GIVEN_PORT"
 	RESET_SENTINEL              = "RESET_ALL_SENTINEL_CONFIG"
diff --git a/operator/redisfailover/checker.go b/operator/redisfailover/checker.go
index 89a0c2f19..1671da74d 100644
--- a/operator/redisfailover/checker.go
+++ b/operator/redisfailover/checker.go
@@ -249,7 +249,9 @@ func (r *RedisFailoverHandler) checkAndHealBootstrapMode(rf *redisfailoverv1.Red
 	}
 
 	bootstrapSettings := rf.Spec.BootstrapNode
-	if err := r.rfHealer.SetExternalMasterOnAll(bootstrapSettings.Host, bootstrapSettings.Port, rf); err != nil {
+	err = r.rfHealer.SetExternalMasterOnAll(bootstrapSettings.Host, bootstrapSettings.Port, rf)
+	setRedisCheckerMetrics(r.mClient, "redis", rf.Namespace, rf.Name, metrics.APPLY_EXTERNAL_MASTER, metrics.NOT_APPLICABLE, err)
+	if err != nil {
 		return err
 	}
 
diff --git a/operator/redisfailover/service/check.go b/operator/redisfailover/service/check.go
index e54f49005..b65c782b2 100644
--- a/operator/redisfailover/service/check.go
+++ b/operator/redisfailover/service/check.go
@@ -230,10 +230,19 @@ func (r *RedisFailoverChecker) CheckSentinelSlavesNumberInMemory(sentinel string
 	nSlaves, err := r.redisClient.GetNumberSentinelSlavesInMemory(sentinel)
 	if err != nil {
 		return err
-	} else if nSlaves != rf.Spec.Redis.Replicas-1 {
-		return errors.New("redis slaves in sentinel memory mismatch")
+	} else {
+		if rf.Bootstrapping() {
+			if nSlaves != rf.Spec.Redis.Replicas {
+				return errors.New("redis slaves in sentinel memory mismatch")
+			}
+		} else {
+			if nSlaves != rf.Spec.Redis.Replicas-1 {
+				return errors.New("redis slaves in sentinel memory mismatch")
+			}
+		}
 	}
 	return nil
+
 }
 
 // CheckSentinelMonitor controls if the sentinels are monitoring the expected master
diff --git a/service/redis/client.go b/service/redis/client.go
index 8c42690bf..3364de495 100644
--- a/service/redis/client.go
+++ b/service/redis/client.go
@@ -239,6 +239,7 @@ func (c *client) MonitorRedisWithPort(ip, monitor, port, quorum, password string
 		}
 		_, err = cmd.Result()
 		if err != nil {
+			c.metricsRecorder.RecordRedisOperation(metrics.KIND_REDIS, ip, metrics.MONITOR_REDIS_WITH_PORT, metrics.FAIL, getRedisError(err))
 			return err
 		}
 	}
@@ -258,7 +259,7 @@ func (c *client) MakeMaster(ip string, port string, password string) error {
 		c.metricsRecorder.RecordRedisOperation(metrics.KIND_REDIS, ip, metrics.MAKE_MASTER, metrics.FAIL, getRedisError(res.Err()))
 		return res.Err()
 	}
-	c.metricsRecorder.RecordRedisOperation(metrics.KIND_REDIS, ip, metrics.MAKE_MASTER, metrics.FAIL, metrics.NOT_APPLICABLE)
+	c.metricsRecorder.RecordRedisOperation(metrics.KIND_REDIS, ip, metrics.MAKE_MASTER, metrics.SUCCESS, metrics.NOT_APPLICABLE)
 	return nil
 }