diff --git a/bundles/backup-server/metadata.py b/bundles/backup-server/metadata.py
index 6714288..cbc922e 100644
--- a/bundles/backup-server/metadata.py
+++ b/bundles/backup-server/metadata.py
@@ -97,7 +97,9 @@ def zfs_pool(metadata):
         'devices': pool_devices,
     }]
 
-    if len(pool_devices) > 2:
+    if len(pool_devices) > 3:
+        pool_config[0]['type'] = 'raidz2'
+    elif len(pool_devices) > 2:
         pool_config[0]['type'] = 'raidz'
     elif len(pool_devices) > 1:
         pool_config[0]['type'] = 'mirror'