diff --git a/fs_mgr/tools/dmctl.cpp b/fs_mgr/tools/dmctl.cpp
index 4fb0b83..2738457 100644
--- a/fs_mgr/tools/dmctl.cpp
+++ b/fs_mgr/tools/dmctl.cpp
@@ -197,19 +197,12 @@
     char** argv_;
 };
 
-static int DmCreateCmdHandler(int argc, char** argv) {
-    if (argc < 1) {
-        std::cerr << "Usage: dmctl create <dm-name> [-ro] <targets...>" << std::endl;
-        return -EINVAL;
-    }
-    std::string name = argv[0];
-
+static bool parse_table_args(DmTable* table, int argc, char** argv) {
     // Parse extended options first.
-    DmTable table;
     int arg_index = 1;
     while (arg_index < argc && argv[arg_index][0] == '-') {
         if (strcmp(argv[arg_index], "-ro") == 0) {
-            table.set_readonly(true);
+            table->set_readonly(true);
             arg_index++;
         } else {
             std::cerr << "Unrecognized option: " << argv[arg_index] << std::endl;
@@ -221,15 +214,30 @@
     TargetParser parser(argc - arg_index, argv + arg_index);
     while (parser.More()) {
         std::unique_ptr<DmTarget> target = parser.Next();
-        if (!target || !table.AddTarget(std::move(target))) {
+        if (!target || !table->AddTarget(std::move(target))) {
             return -EINVAL;
         }
     }
 
-    if (table.num_targets() == 0) {
+    if (table->num_targets() == 0) {
         std::cerr << "Must define at least one target." << std::endl;
         return -EINVAL;
     }
+    return 0;
+}
+
+static int DmCreateCmdHandler(int argc, char** argv) {
+    if (argc < 1) {
+        std::cerr << "Usage: dmctl create <dm-name> [-ro] <targets...>" << std::endl;
+        return -EINVAL;
+    }
+    std::string name = argv[0];
+
+    DmTable table;
+    int ret = parse_table_args(&table, argc, argv);
+    if (ret) {
+        return ret;
+    }
 
     DeviceMapper& dm = DeviceMapper::Instance();
     if (!dm.CreateDevice(name, table)) {
@@ -255,6 +263,27 @@
     return 0;
 }
 
+static int DmReplaceCmdHandler(int argc, char** argv) {
+    if (argc < 1) {
+        std::cerr << "Usage: dmctl replace <dm-name> <targets...>" << std::endl;
+        return -EINVAL;
+    }
+    std::string name = argv[0];
+
+    DmTable table;
+    int ret = parse_table_args(&table, argc, argv);
+    if (ret) {
+        return ret;
+    }
+
+    DeviceMapper& dm = DeviceMapper::Instance();
+    if (!dm.LoadTableAndActivate(name, table)) {
+        std::cerr << "Failed to replace device-mapper table to: " << name << std::endl;
+        return -EIO;
+    }
+    return 0;
+}
+
 static int DmListTargets(DeviceMapper& dm, [[maybe_unused]] int argc,
                          [[maybe_unused]] char** argv) {
     std::vector<DmTargetTypeInfo> targets;
@@ -469,6 +498,7 @@
         // clang-format off
         {"create", DmCreateCmdHandler},
         {"delete", DmDeleteCmdHandler},
+        {"replace", DmReplaceCmdHandler},
         {"list", DmListCmdHandler},
         {"help", HelpCmdHandler},
         {"getpath", GetPathCmdHandler},