diff --git a/test/common/autotest_common.sh b/test/common/autotest_common.sh
index 1c740a503..f5b06e591 100644
--- a/test/common/autotest_common.sh
+++ b/test/common/autotest_common.sh
@@ -657,6 +657,22 @@ function waitforblk()
 	return 0
 }
 
+function waitforblk_disconnect()
+{
+	local i=0
+	while lsblk -l -o NAME | grep -q -w $1; do
+		[ $i -lt 15 ] || break
+		i=$[$i+1]
+		sleep 1
+	done
+
+	if lsblk -l -o NAME | grep -q -w $1; then
+		return 1
+	fi
+
+	return 0
+}
+
 function fio_config_gen()
 {
 	local config_file=$1