diff --git a/source/dnode/mgmt/node_util/src/dmUtil.c b/source/dnode/mgmt/node_util/src/dmUtil.c
index b50c746c92..f8c0955745 100644
--- a/source/dnode/mgmt/node_util/src/dmUtil.c
+++ b/source/dnode/mgmt/node_util/src/dmUtil.c
@@ -74,6 +74,7 @@ void dmGetMonitorSystemInfo(SMonSysInfo *pInfo) {
   }
   pInfo->mem_total = tsTotalMemoryKB;
   pInfo->disk_engine = 0;
+  osUpdate();
   pInfo->disk_used = tsDataSpace.size.used;
   pInfo->disk_total = tsDataSpace.size.total;
   code = taosGetCardInfoDelta(&pInfo->net_in, &pInfo->net_out);