diff --git a/casadm/cas_main.c b/casadm/cas_main.c
index 8d5727bef..e6d656139 100644
--- a/casadm/cas_main.c
+++ b/casadm/cas_main.c
@@ -1,5 +1,6 @@
 /*
 * Copyright(c) 2012-2022 Intel Corporation
+* Copyright(c) 2024 Huawei Technologies
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
@@ -2373,7 +2374,7 @@ static cli_command cas_commands[] = {
 			.options = standby_params_options,
 			.command_handle_opts = standby_handle_option,
 			.handle = standby_handle,
-			.flags = CLI_SU_REQUIRED,
+			.flags = (CLI_COMMAND_BLOCKED | CLI_SU_REQUIRED),
 			.help = standby_help,
 		},
 		{
diff --git a/modules/cas_cache/layer_cache_management.c b/modules/cas_cache/layer_cache_management.c
index b4df56b8d..7028c2b6f 100644
--- a/modules/cas_cache/layer_cache_management.c
+++ b/modules/cas_cache/layer_cache_management.c
@@ -1882,6 +1882,15 @@ int cache_mngt_create_cache_cfg(struct ocf_mngt_cache_config *cfg,
 	char cache_name[OCF_CACHE_NAME_SIZE];
 	uint16_t cache_id;
 
+	switch (cmd->init_cache) {
+		case CACHE_INIT_STANDBY_NEW:
+		case CACHE_INIT_STANDBY_LOAD:
+			printk(KERN_ERR "Standby mode is not supported!\n");
+			return -ENOTSUP;
+		default:
+			break;
+	}
+
 	if (!cmd)
 		return -OCF_ERR_INVAL;
 
@@ -2453,6 +2462,15 @@ int cache_mngt_init_instance(struct ocf_mngt_cache_config *cfg,
 	ocf_cache_mode_t cache_mode_meta;
 	ocf_cache_line_size_t cache_line_size_meta;
 
+	switch (cmd->init_cache) {
+		case CACHE_INIT_STANDBY_NEW:
+		case CACHE_INIT_STANDBY_LOAD:
+			printk(KERN_ERR "Standby mode is not supported!\n");
+			return -ENOTSUP;
+		default:
+			break;
+	}
+
 	if (!try_module_get(THIS_MODULE))
 		return -KCAS_ERR_SYSTEM;
 
diff --git a/modules/cas_cache/service_ui_ioctl.c b/modules/cas_cache/service_ui_ioctl.c
index f835bdb98..ae8fc7bd8 100644
--- a/modules/cas_cache/service_ui_ioctl.c
+++ b/modules/cas_cache/service_ui_ioctl.c
@@ -1,5 +1,6 @@
 /*
 * Copyright(c) 2012-2022 Intel Corporation
+* Copyright(c) 2024 Huawei Technologies
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
@@ -381,6 +382,8 @@ long cas_service_ioctl_ctrl(struct file *filp, unsigned int cmd,
 	case KCAS_IOCTL_STANDBY_DETACH: {
 		struct kcas_standby_detach *cmd_info;
 
+		return -ENOTSUP;
+
 		GET_CMD_INFO(cmd_info, arg);
 
 		retval = cache_mngt_standby_detach(cmd_info);
@@ -391,6 +394,8 @@ long cas_service_ioctl_ctrl(struct file *filp, unsigned int cmd,
 		struct kcas_standby_activate *cmd_info;
 		struct ocf_mngt_cache_standby_activate_config cfg;
 
+		return -ENOTSUP;
+
 		GET_CMD_INFO(cmd_info, arg);
 
 		retval = cache_mngt_create_cache_standby_activate_cfg(&cfg,