diff --git a/Grow.c b/Grow.c
index 36bb7de..25c55cc 100644
--- a/Grow.c
+++ b/Grow.c
@@ -2005,14 +2005,58 @@ static int reshape_array(char *container, int fd, char *devname,
 
 		if (backup_file && done)
 			unlink(backup_file);
-		if (!done)
+		if (!done) {
 			abort_reshape(sra);
-		else if (info->new_level != info->array.level) {
+			goto out;
+		}
+		/* set new array size if required customer_array_size is used
+		 * by this metadata.
+		 */
+		if (reshape.before.data_disks !=
+		    reshape.after.data_disks &&
+		    info->custom_array_size) {
+			struct mdinfo *info2;
+			char *subarray = strchr(info->text_version+1, '/')+1;
+
+			wait_reshape(sra);
+			ping_monitor(container);
+
+			info2 = st->ss->container_content(st, subarray);
+			if (info2) {
+				unsigned long long current_size = 0;
+				unsigned long long new_size =
+					info2->custom_array_size/2;
+
+				if (sysfs_get_ll(sra,
+						 NULL,
+						 "array_size",
+						 &current_size) == 0 &&
+				    new_size > current_size) {
+					if (sysfs_set_num(sra, NULL,
+							  "array_size", new_size)
+					    < 0)
+						dprintf("Error: Cannot"
+							" set array size");
+					else
+						dprintf("Array size "
+							"changed");
+					dprintf(" from %llu to %llu.\n",
+						current_size, new_size);
+				}
+				sysfs_free(info2);
+			}
+		}
+
+		if (info->new_level != info->array.level) {
 			/* We need to wait for the reshape to finish
-			 * (which will have happened unless odata < ndata)
-			 * and then set the level
+			 * (which will have happened unless
+			 * odata < ndata) and then set the level
 			 */
 
+			if (reshape.before.data_disks <
+			    reshape.after.data_disks)
+				wait_reshape(sra);
+
 			c = map_num(pers, info->new_level);
 			if (c == NULL) {
 				if (forked)
@@ -2020,14 +2064,13 @@ static int reshape_array(char *container, int fd, char *devname,
 				exit(0);/* not possible */
 			}
 
-			if (reshape.before.data_disks < 
-			    reshape.after.data_disks)
-				wait_reshape(sra);
 			err = sysfs_set_str(sra, NULL, "level", c);
 			if (err)
-				fprintf(stderr, Name ": %s: could not set level to %s\n",
-					devname, c);
+				fprintf(stderr, Name\
+					": %s: could not set level"
+					"to %s\n", devname, c);
 		}
+	out:
 		if (forked)
 			return 0;
 		exit(0);