diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index eb1e735..01aadba 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -1266,6 +1266,31 @@ fetch_vpd_page(int fd, int pg, unsigned char *buff)
 	return buff_len;
 }
 
+/* heavily based on sg_inq.c from sg3_utils */
+bool
+is_vpd_page_supported(int fd, int pg)
+{
+	int i, len, buff_len;
+	unsigned char buff[4096];
+
+	buff_len = fetch_vpd_page(fd, 0x00, buff);
+	if (buff_len < 0)
+		return false;
+	if (buff_len < 4) {
+		condlog(3, "VPD page 00h too short");
+		return false;
+	}
+
+	len = buff[3] + 4;
+	if (len > buff_len)
+		condlog(3, "vpd page 00h trucated, expected %d, have %d",
+			len, buff_len);
+	for (i = 4; i < len; ++i)
+		if (buff[i] == pg)
+			return true;
+	return false;
+}
+
 int
 get_vpd_sgio (int fd, int pg, int vend_id, char * str, int maxlen)
 {
diff --git a/libmultipath/discovery.h b/libmultipath/discovery.h
index 6444887..d3193da 100644
--- a/libmultipath/discovery.h
+++ b/libmultipath/discovery.h
@@ -56,6 +56,7 @@ int sysfs_get_asymmetric_access_state(struct path *pp,
 				      char *buff, int buflen);
 int get_uid(struct path * pp, int path_state, struct udev_device *udev,
 	    int allow_fallback);
+bool is_vpd_page_supported(int fd, int pg);
 
 /*
  * discovery bitmask
diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
index d362beb..d7febec 100644
--- a/libmultipath/propsel.c
+++ b/libmultipath/propsel.c
@@ -496,13 +496,15 @@ check_rdac(struct path * pp)
 {
 	int len;
 	char buff[44];
-	const char *checker_name;
+	const char *checker_name = NULL;
 
 	if (pp->bus != SYSFS_BUS_SCSI)
 		return 0;
-	/* Avoid ioctl if this is likely not an RDAC array */
-	if (__do_set_from_hwe(checker_name, pp, checker_name) &&
-	    strcmp(checker_name, RDAC))
+	/* Avoid checking 0xc9 if this is likely not an RDAC array */
+	if (!__do_set_from_hwe(checker_name, pp, checker_name) &&
+	    !is_vpd_page_supported(pp->fd, 0xC9))
+		return 0;
+	if (checker_name && strcmp(checker_name, RDAC))
 		return 0;
 	len = get_vpd_sgio(pp->fd, 0xC9, 0, buff, 44);
 	if (len <= 0)