diff --git a/fm-api/fm_api/constants.py b/fm-api/fm_api/constants.py
index 92154556..fa3bc4b9 100755
--- a/fm-api/fm_api/constants.py
+++ b/fm-api/fm_api/constants.py
@@ -36,6 +36,7 @@ FM_ENTITY_TYPE_ML2DRIVER = 'ml2driver'
 FM_ENTITY_TYPE_PV = 'pv'
 FM_ENTITY_TYPE_BGP_PEER = "bgp-peer"
 FM_ENTITY_TYPE_STORAGE_BACKEND = 'storage_backend'
+FM_ENTITY_TYPE_IMAGE_CONVERSION = 'fs_name'
 FM_ENTITY_TYPE_SUBCLOUD = 'subcloud'
 FM_ENTITY_TYPE_APPLICATION = 'k8s_application'
 
@@ -63,6 +64,7 @@ ALARM_GROUP_SW_MGMT = "900"
 
 # General Alarm id
 FM_ALARM_ID_FS_USAGE = ALARM_GROUP_GENERAL + ".104"
+FM_ALARM_ID_IMAGE_CONVERSION = ALARM_GROUP_GENERAL + ".105"
 
 # Maintenance Log id
 FM_LOG_ID_HOST_DISCOVERED = ALARM_GROUP_MAINTENANCE + ".020"
diff --git a/fm-doc/fm_doc/events.yaml b/fm-doc/fm_doc/events.yaml
index db56afd1..ca3c9a9b 100755
--- a/fm-doc/fm_doc/events.yaml
+++ b/fm-doc/fm_doc/events.yaml
@@ -178,6 +178,25 @@
     Management_Affecting_Severity: critical
     Degrade_Affecting_Severity: critical
 
+100.105:
+    Type: Alarm
+    Description: |-
+        Filesystem Alarm Condition:
+        <fs_name> filesystem is not added on both controllers and/or does not have the same size: <hostname>.
+    Entity_Instance_ID: fs_name=<image-conversion>
+    Severity: critical
+    Proposed_Repair_Action: "Add image-conversion filesystem on both controllers.
+                             Consult the System Administration Manual for more details.
+                             If problem persists, contact next level of support."
+    Maintenance_Action: degrade
+    Inhibit_Alarms:
+    Alarm_Type: equipment
+    Probable_Cause: configuration-or-customization-error
+    Service_Affecting: True
+    Suppression: False
+    Management_Affecting_Severity: major
+    Degrade_Affecting_Severity: none
+
 #--------
 # 100.105: Retired (with R2 release): previously monitored /etc/nova/instances
 #          NFS mount from controller to computes