diff --git a/ocs_ci/ocs/cluster.py b/ocs_ci/ocs/cluster.py
index dfd5ed8b50d5..d811e37ee54e 100644
--- a/ocs_ci/ocs/cluster.py
+++ b/ocs_ci/ocs/cluster.py
@@ -1239,10 +1239,10 @@ def validate_pdb_creation():
     )
     item_list = pdb_obj.get().get("items")
     pdb_count = constants.PDB_COUNT
-    pdb_required = [constants.MDS_PDB, constants.MON_PDB, constants.OSD_PDB]
+    pdb_required = [constants.MDS_PDB, constants.MON_PDB, constants.OSD_PDB, constants.MGR_PDB]
     if config.DEPLOYMENT.get("arbiter_deployment"):
         pdb_count = constants.PDB_COUNT_ARBITER
-        pdb_required.extend((constants.MGR_PDB, constants.RGW_PDB))
+        pdb_required.extend(constants.RGW_PDB)
     if len(item_list) != pdb_count:
         raise PDBNotCreatedException(
             f"Not All PDB's created. Expected {pdb_count} PDB's but found {len(item_list)}"
diff --git a/ocs_ci/ocs/constants.py b/ocs_ci/ocs/constants.py
index fb0e87df186e..570f41e11713 100644
--- a/ocs_ci/ocs/constants.py
+++ b/ocs_ci/ocs/constants.py
@@ -1215,7 +1215,7 @@
 MON_PDB = "rook-ceph-mon-pdb"
 MGR_PDB = "rook-ceph-mgr-pdb"
 RGW_PDB = "rook-ceph-rgw-ocs-storagecluster-cephobjectstore"
-PDB_COUNT = 3
+PDB_COUNT = 4
 PDB_COUNT_ARBITER = 5
 
 # Root Disk size