diff --git a/_service b/_service
index 675f870..e139edd 100644
--- a/_service
+++ b/_service
@@ -4,7 +4,7 @@
     <param name="scm">git</param>
     <param name="exclude">.git</param>
     <param name="filename">saphanabootstrap-formula</param>
-    <param name="versionformat">0.11.0+git.%ct.%h</param>
+    <param name="versionformat">0.12.0+git.%ct.%h</param>
     <param name="revision">%%VERSION%%</param>
   </service>
 
diff --git a/hana/ha_cluster.sls b/hana/ha_cluster.sls
index bcd5f39..b9b8204 100644
--- a/hana/ha_cluster.sls
+++ b/hana/ha_cluster.sls
@@ -2,9 +2,10 @@
 {% set host = grains['host'] %}
 
 {% if hana.scale_out %}
-{% set sr_hook_path = '/usr/share/SAPHanaSR-ScaleOut' %}
-{% set sr_hook_multi_target = sr_hook_path + '/SAPHanaSrMultiTarget.py' %}
-{% set sr_hook = sr_hook_path + '/SAPHanaSR.py' %}
+{% set hook_path = '/usr/share/SAPHanaSR-ScaleOut' %}
+{% set sr_hook_multi_target = hook_path + '/SAPHanaSrMultiTarget.py' %}
+{% set sr_hook = hook_path + '/SAPHanaSR.py' %}
+{% set sustkover_hook = hook_path + '/susTkOver.py' %}
 
 remove_SAPHanaSR:
   pkg.removed:
@@ -19,9 +20,10 @@ install_SAPHanaSR:
       - SAPHanaSR-ScaleOut-doc
 
 {% else %}
-{% set sr_hook_path = '/usr/share/SAPHanaSR' %}
-{% set sr_hook_multi_target = sr_hook_path + '/SAPHanaSrMultiTarget.py' %}
-{% set sr_hook = sr_hook_path + '/SAPHanaSR.py' %}
+{% set hook_path = '/usr/share/SAPHanaSR' %}
+{% set sr_hook_multi_target = hook_path + '/SAPHanaSrMultiTarget.py' %}
+{% set sr_hook = hook_path + '/SAPHanaSR.py' %}
+{% set sustkover_hook = hook_path + '/susTkOver.py' %}
 
 remove_SAPHanaSR:
   pkg.removed:
@@ -71,6 +73,7 @@ sudoers_create_{{ sap_instance }}:
         sr_hook: {{ sr_hook }}
         sr_hook_multi_target: {{ sr_hook_multi_target }}
         sr_hook_string: __slot__:salt:file.grep({{ sr_hook }}, "^srHookGen = ").stdout
+        sustkover_hook: {{ sustkover_hook }}
 
 # remove old entries from /etc/sudoers (migration to new /etc/sudoers.d/SAPHanaSR file)
 sudoers_remove_old_entries_{{ sap_instance }}_srHook:
@@ -91,7 +94,7 @@ configure_ha_hook_{{ sap_instance }}_multi_target:
     - sections:
         ha_dr_provider_SAPHanaSrMultiTarget:
           provider: 'SAPHanaSrMultiTarget'
-          path: '{{ sr_hook_path }}'
+          path: '{{ hook_path }}'
           execution_order: '1'
         trace:
           ha_dr_saphanasrmultitarget: 'info'
@@ -108,7 +111,7 @@ configure_ha_hook_{{ sap_instance }}:
     - sections:
         ha_dr_provider_SAPHanaSR:
           provider: 'SAPHanaSR'
-          path: '{{ sr_hook_path }}'
+          path: '{{ hook_path }}'
           execution_order: '1'
         trace:
           ha_dr_saphanasr: 'info'
@@ -163,6 +166,23 @@ remove_wrong_ha_hook_{{ sap_instance }}_options:
     - unless:
       - test -f {{ sr_hook_multi_target }}
 
+configure_susTkOver_hook_{{ sap_instance }}:
+  ini.options_present:
+    - name:  /hana/shared/{{ node.sid.upper() }}/global/hdb/custom/config/global.ini
+    - separator: '='
+    - strict: False # do not touch rest of file
+    - sections:
+        ha_dr_provider_sustkover:
+          provider: 'susTkOver'
+          path: '{{ hook_path }}'
+          execution_order: '2'
+        trace:
+          ha_dr_sustkover: 'info'
+    - require:
+      - pkg: install_SAPHanaSR
+    - onlyif:
+      - test -f {{ sustkover_hook }}
+
 # Configure system replication operation mode in the primary site
 {% for secondary_node in hana.nodes if node.primary is defined and secondary_node.secondary is defined and secondary_node.secondary.remote_host == host %}
 configure_replication_{{ sap_instance }}:
diff --git a/saphanabootstrap-formula.changes b/saphanabootstrap-formula.changes
index eb17a2a..dcad4ce 100644
--- a/saphanabootstrap-formula.changes
+++ b/saphanabootstrap-formula.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Jul 28 10:03:12 UTC 2022 - Eike Waldt <waldt@b1-systems.de>
+
+- Version bump 0.12.0
+  * add SAPHanaSR takeover blocker
+
 -------------------------------------------------------------------
 Thu Jul 19 11:47:52 UTC 2022 - Eike Waldt <waldt@b1-systems.de>
 
diff --git a/templates/ha_cluster_sudoers.j2 b/templates/ha_cluster_sudoers.j2
index 4277ffa..534786d 100644
--- a/templates/ha_cluster_sudoers.j2
+++ b/templates/ha_cluster_sudoers.j2
@@ -22,3 +22,6 @@ Cmnd_Alias SOK_SITEB      = /usr/sbin/crm_attribute -n hana_{{ node.sid.lower()
 Cmnd_Alias SFAIL_SITEB    = /usr/sbin/crm_attribute -n hana_{{ node.sid.lower() }}_site_srHook_{{ sites['b'] }} -v SFAIL -t crm_config -s SAPHanaSR
 {{ node.sid.lower() }}adm ALL=(ALL) NOPASSWD: SOK_SITEA, SFAIL_SITEA, SOK_SITEB, SFAIL_SITEB
 {%- endif %}
+# SAPHanaSR takeover blocker needs for {{ sustkover_hook }}
+Cmnd_Alias HOOK_HELPER_TKOVER = /usr/sbin/SAPHanaSR-hookHelper --case checkTakeover --sid={{ node.sid.lower() }}
+{{ node.sid.lower() }}adm ALL=(ALL) NOPASSWD: HOOK_HELPER_TKOVER