diff --git a/playbooks/legacy/grenade-dsvm-cinder-mn-sub-bak/run.yaml b/playbooks/legacy/grenade-dsvm-cinder-mn-sub-bak/run.yaml
index 2873b2f8..2b12f1eb 100644
--- a/playbooks/legacy/grenade-dsvm-cinder-mn-sub-bak/run.yaml
+++ b/playbooks/legacy/grenade-dsvm-cinder-mn-sub-bak/run.yaml
@@ -1,4 +1,4 @@
-- hosts: all
+- hosts: primary
   name: Autoconverted job legacy-grenade-dsvm-cinder-mn-sub-bak from old job gate-grenade-dsvm-cinder-mn-sub-bak-ubuntu-xenial-nv
   tasks:
 
diff --git a/playbooks/legacy/grenade-dsvm-cinder-mn-sub-volbak/run.yaml b/playbooks/legacy/grenade-dsvm-cinder-mn-sub-volbak/run.yaml
index 0ca2dee3..37d39fc8 100644
--- a/playbooks/legacy/grenade-dsvm-cinder-mn-sub-volbak/run.yaml
+++ b/playbooks/legacy/grenade-dsvm-cinder-mn-sub-volbak/run.yaml
@@ -1,4 +1,4 @@
-- hosts: all
+- hosts: primary
   name: Autoconverted job legacy-grenade-dsvm-cinder-mn-sub-volbak from old job gate-grenade-dsvm-cinder-mn-sub-volbak-ubuntu-xenial
   tasks:
 
diff --git a/playbooks/legacy/grenade-dsvm-cinder-mn-sub-volschbak/run.yaml b/playbooks/legacy/grenade-dsvm-cinder-mn-sub-volschbak/run.yaml
index ad62c8e9..d6017497 100644
--- a/playbooks/legacy/grenade-dsvm-cinder-mn-sub-volschbak/run.yaml
+++ b/playbooks/legacy/grenade-dsvm-cinder-mn-sub-volschbak/run.yaml
@@ -1,4 +1,4 @@
-- hosts: all
+- hosts: primary
   name: Autoconverted job legacy-grenade-dsvm-cinder-mn-sub-volschbak from old job
     gate-grenade-dsvm-cinder-mn-sub-volschbak-ubuntu-xenial-nv
   tasks:
diff --git a/zuul.d/zuul-legacy-jobs.yaml b/zuul.d/zuul-legacy-jobs.yaml
index 3c2edc57..942db3d0 100644
--- a/zuul.d/zuul-legacy-jobs.yaml
+++ b/zuul.d/zuul-legacy-jobs.yaml
@@ -2728,7 +2728,7 @@
 
 - job:
     name: legacy-grenade-dsvm-cinder-mn-sub-bak
-    parent: legacy-dsvm-base
+    parent: legacy-dsvm-base-multinode
     run: playbooks/legacy/grenade-dsvm-cinder-mn-sub-bak/run
     post-run: playbooks/legacy/grenade-dsvm-cinder-mn-sub-bak/post
     timeout: 10800
@@ -2740,7 +2740,7 @@
 
 - job:
     name: legacy-grenade-dsvm-cinder-mn-sub-volbak
-    parent: legacy-dsvm-base
+    parent: legacy-dsvm-base-multinode
     run: playbooks/legacy/grenade-dsvm-cinder-mn-sub-volbak/run
     post-run: playbooks/legacy/grenade-dsvm-cinder-mn-sub-volbak/post
     timeout: 10800
@@ -2752,7 +2752,7 @@
 
 - job:
     name: legacy-grenade-dsvm-cinder-mn-sub-volschbak
-    parent: legacy-dsvm-base
+    parent: legacy-dsvm-base-multinode
     run: playbooks/legacy/grenade-dsvm-cinder-mn-sub-volschbak/run
     post-run: playbooks/legacy/grenade-dsvm-cinder-mn-sub-volschbak/post
     timeout: 10800