diff --git a/backups/daemonset+cronjob/cm-script.yaml b/backups/daemonset+cronjob/cm-script.yaml
index cd24b4e..5508678 100644
--- a/backups/daemonset+cronjob/cm-script.yaml
+++ b/backups/daemonset+cronjob/cm-script.yaml
@@ -21,6 +21,7 @@ data:
     HOSTNAME="${NODE_NAME:-$HOSTNAME}"
 
     FEISHU_WEBHOOK_URL=$(cat /etc/feishu-webhook/url)
+    SOURCE_SIZE=$(du -sh /data/local-csi | cut -f1)
 
     START_TIME=$(date +%s)
     
@@ -54,7 +55,6 @@ data:
       TIMESTAMP=$(date +%Y-%m-%d-%H-%M-%S)
       BACKUP_NAME="backup-${DIR_NAME}-${TIMESTAMP}.tar.gz"
       BACKUP_PATH="/tmp/${BACKUP_NAME}"
-      SOURCE_SIZE=$(du -sh /data/local-csi | cut -f1)
       
       echo "正在备份目录: $dir"