diff --git a/src/tests/ftest/erasurecode/online_rebuild.yaml b/src/tests/ftest/erasurecode/online_rebuild.yaml
index 4911d4b22e2..74a6eb29ba5 100644
--- a/src/tests/ftest/erasurecode/online_rebuild.yaml
+++ b/src/tests/ftest/erasurecode/online_rebuild.yaml
@@ -62,8 +62,8 @@ ior:
         - [32M, 512M, 2K]
   objectclass:
     dfs_oclass_list:
-      #- [EC_Object_Class, Minimum number of servers]
+      #- [EC_Object_Class, Exact number of servers]
       - ["EC_2P2G1", 6]
       - ["EC_4P2G1", 8]
-      - ["EC_4P3G1", 9]
+      - ["EC_4P3G1", 12]
       - ["EC_8P2G1", 12]
diff --git a/src/tests/ftest/erasurecode/online_rebuild_mdtest.yaml b/src/tests/ftest/erasurecode/online_rebuild_mdtest.yaml
index f01264640e6..83c2831f4f0 100644
--- a/src/tests/ftest/erasurecode/online_rebuild_mdtest.yaml
+++ b/src/tests/ftest/erasurecode/online_rebuild_mdtest.yaml
@@ -55,8 +55,8 @@ mdtest:
   dfs_dir_oclass: "RP_3G1"
   objectclass:
     dfs_oclass_list:
-      #- [EC_Object_Class, Minimum number of servers]
+      #- [EC_Object_Class, Exact number of servers]
       - ["EC_2P2GX", 6]
       - ["EC_4P2GX", 8]
-      - ["EC_4P3GX", 9]
+      - ["EC_4P3GX", 12]
       - ["EC_8P2GX", 12]
diff --git a/src/tests/ftest/ior/hard_rebuild.yaml b/src/tests/ftest/ior/hard_rebuild.yaml
index ab0edc8634d..54a89fc237f 100644
--- a/src/tests/ftest/ior/hard_rebuild.yaml
+++ b/src/tests/ftest/ior/hard_rebuild.yaml
@@ -50,10 +50,10 @@ ior:
     - [47008, 47008, 47008]
   objectclass:
     dfs_oclass_list:
-      # - [EC_Object_Class, Minimum number of servers]
+      # - [EC_Object_Class, Exact number of servers]
       - ["EC_2P2GX", 6]
       - ["EC_4P2GX", 8]
-      - ["EC_4P3GX", 9]
+      - ["EC_4P3GX", 12]
       - ["EC_8P2GX", 12]
   sw_wearout: 1
   sw_status_file: stoneWallingStatusFile