diff --git a/tests/bsim/bluetooth/mesh/CMakeLists.txt b/tests/bsim/bluetooth/mesh/CMakeLists.txt
index 749e8d7acf43f4..b1be544ed86e5e 100644
--- a/tests/bsim/bluetooth/mesh/CMakeLists.txt
+++ b/tests/bsim/bluetooth/mesh/CMakeLists.txt
@@ -20,7 +20,6 @@ endif()
 if(CONFIG_SETTINGS)
 
  target_sources(app PRIVATE
-  src/settings_test_backend.c
   src/test_persistence.c
   src/test_replay_cache.c
   src/test_provision.c
diff --git a/tests/bsim/bluetooth/mesh/_mesh_test.sh b/tests/bsim/bluetooth/mesh/_mesh_test.sh
index 2b2d0b4c52d49d..fa999a5ace8b8d 100755
--- a/tests/bsim/bluetooth/mesh/_mesh_test.sh
+++ b/tests/bsim/bluetooth/mesh/_mesh_test.sh
@@ -26,20 +26,30 @@ function RunTest(){
   s_id=$1
   shift 1
 
-  testids=()
-  for testid in $@ ; do
-    if [ "$testid" == "--" ]; then
+  declare -A testids
+  testid=""
+  testid_in_order=()
+
+  for arg in $@ ; do
+    if [ "$arg" == "--" ]; then
       shift 1
       break
     fi
 
-    testids+=( $testid )
+    if [[ "$arg" == "-"* ]]; then
+        testids["${testid}"]+="$arg "
+    else
+        testid=$arg
+        testid_in_order+=($testid)
+        testids["${testid}"]=""
+    fi
+
     shift 1
   done
 
   test_options=$@
 
-  for testid in ${testids[@]} ; do
+  for testid in ${testid_in_order[@]}; do
     if Skip $testid; then
       echo "Skipping $testid (device #$idx)"
       let idx=idx+1
@@ -58,7 +68,7 @@ function RunTest(){
     Execute \
       ${exe_name} \
       -v=${verbosity_level} -s=$s_id -d=$idx -sync_preboot -RealEncryption=1 \
-      -testid=$testid ${test_options}
+      -testid=$testid ${testids["${testid}"]} ${test_options}
     let idx=idx+1
   done
 
@@ -70,3 +80,28 @@ function RunTest(){
 
   wait_for_background_jobs
 }
+
+function RunTestFlash(){
+  s_id=$1
+  ext_arg="${s_id} "
+  idx=0
+  shift 1
+
+  for arg in $@ ; do
+    if [ "$arg" == "--" ]; then
+      ext_arg+=$@
+      break
+    fi
+
+    ext_arg+="$arg "
+
+    if [[ "$arg" != "-"* ]]; then
+      ext_arg+="-flash=../results/${s_id}/${s_id}_${idx}.bin "
+      let idx=idx+1
+    fi
+
+    shift 1
+  done
+
+  RunTest ${ext_arg}
+}
diff --git a/tests/bsim/bluetooth/mesh/overlay_pst.conf b/tests/bsim/bluetooth/mesh/overlay_pst.conf
index a79faccee23f03..0933bdf10207ec 100644
--- a/tests/bsim/bluetooth/mesh/overlay_pst.conf
+++ b/tests/bsim/bluetooth/mesh/overlay_pst.conf
@@ -1,11 +1,15 @@
 CONFIG_SETTINGS=y
-CONFIG_SETTINGS_CUSTOM=y
 CONFIG_BT_SETTINGS=y
-CONFIG_BT_MESH_SETTINGS_LOG_LEVEL_DBG=y
+CONFIG_FLASH=y
+CONFIG_FLASH_PAGE_LAYOUT=y
+CONFIG_FLASH_MAP=y
+CONFIG_NVS=y
 
 CONFIG_BT_PERIPHERAL=y
 CONFIG_BT_MESH_GATT_PROXY=y
 CONFIG_BT_MESH_PB_GATT=y
+# Disable GATT advertising to prevent interfering with the test scenarios.
+CONFIG_BT_MESH_GATT_PROXY_ENABLED=n
 
 CONFIG_BT_MESH_MODEL_GROUP_COUNT=4
 CONFIG_BT_MESH_CDB_NODE_COUNT=3
diff --git a/tests/bsim/bluetooth/mesh/src/mesh_test.c b/tests/bsim/bluetooth/mesh/src/mesh_test.c
index f9c1e2e58d44b5..6a0d0b4af0ac07 100644
--- a/tests/bsim/bluetooth/mesh/src/mesh_test.c
+++ b/tests/bsim/bluetooth/mesh/src/mesh_test.c
@@ -6,7 +6,6 @@
 #include "mesh_test.h"
 #include "argparse.h"
 #include <bs_pc_backchannel.h>
-#include "settings_test_backend.h"
 #include "mesh/crypto.h"
 
 #define LOG_MODULE_NAME mesh_test
@@ -256,7 +255,10 @@ void bt_mesh_device_setup(const struct bt_mesh_prov *prov, const struct bt_mesh_
 
 	if (IS_ENABLED(CONFIG_BT_SETTINGS)) {
 		LOG_INF("Loading stored settings");
-		settings_load();
+		if (IS_ENABLED(CONFIG_BT_MESH_USES_MBEDTLS_PSA)) {
+			settings_load_subtree("itsemul");
+		}
+		settings_load_subtree("bt");
 	}
 
 	LOG_INF("Mesh initialized");
@@ -550,12 +552,3 @@ void bt_mesh_test_sar_conf_set(struct bt_mesh_sar_tx *tx_set, struct bt_mesh_sar
 	}
 }
 #endif /* defined(CONFIG_BT_MESH_SAR_CFG) */
-
-void bt_mesh_test_host_files_remove(void)
-{
-#if defined(CONFIG_SETTINGS)
-	/* crypto library initialization to be able to remove stored keys. */
-	bt_mesh_crypto_init();
-	settings_test_backend_clear();
-#endif
-}
diff --git a/tests/bsim/bluetooth/mesh/src/mesh_test.h b/tests/bsim/bluetooth/mesh/src/mesh_test.h
index d36f5cddeaffc9..8e7f41cf978e99 100644
--- a/tests/bsim/bluetooth/mesh/src/mesh_test.h
+++ b/tests/bsim/bluetooth/mesh/src/mesh_test.h
@@ -162,6 +162,4 @@ uint16_t bt_mesh_test_own_addr_get(uint16_t start_addr);
 void bt_mesh_test_sar_conf_set(struct bt_mesh_sar_tx *tx_set, struct bt_mesh_sar_rx *rx_set);
 #endif
 
-void bt_mesh_test_host_files_remove(void);
-
 #endif /* ZEPHYR_TESTS_BLUETOOTH_BSIM_BT_BSIM_TEST_MESH_MESH_TEST_H_ */
diff --git a/tests/bsim/bluetooth/mesh/src/psa_its_emul.c b/tests/bsim/bluetooth/mesh/src/psa_its_emul.c
index 92af388ebd4a53..0598b40a3892c9 100644
--- a/tests/bsim/bluetooth/mesh/src/psa_its_emul.c
+++ b/tests/bsim/bluetooth/mesh/src/psa_its_emul.c
@@ -95,7 +95,7 @@ static int itsemul_set(const char *name, size_t len_rd, settings_read_cb read_cb
 	return 0;
 }
 
-BT_MESH_SETTINGS_DEFINE(psa_its_emu, "itsemul", itsemul_set);
+SETTINGS_STATIC_HANDLER_DEFINE(psa_its_emu, "itsemul", NULL, itsemul_set, NULL, NULL);
 
 psa_status_t psa_its_get_info(psa_storage_uid_t uid, struct psa_storage_info_t *p_info)
 {
@@ -164,7 +164,7 @@ psa_status_t psa_its_set(psa_storage_uid_t uid, uint32_t data_length, const void
 		return PSA_ERROR_STORAGE_FAILURE;
 	}
 
-	snprintk(path, sizeof(path), "bt/mesh/itsemul/%llu", uid);
+	snprintk(path, sizeof(path), "itsemul/%llu", uid);
 
 	p_item->uid = uid;
 	p_pst_item = &p_item->pst_item;
@@ -196,7 +196,7 @@ psa_status_t psa_its_remove(psa_storage_uid_t uid)
 	}
 	memset(p_item, 0, sizeof(psa_its_item_t));
 
-	snprintk(path, sizeof(path), "bt/mesh/itsemul/%llu", uid);
+	snprintk(path, sizeof(path), "itsemul/%llu", uid);
 
 	if (settings_delete(path)) {
 		LOG_ERR("Failed to remove its item: %s", path);
diff --git a/tests/bsim/bluetooth/mesh/src/settings_test_backend.c b/tests/bsim/bluetooth/mesh/src/settings_test_backend.c
deleted file mode 100644
index 1b1e77398768e0..00000000000000
--- a/tests/bsim/bluetooth/mesh/src/settings_test_backend.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * Copyright (c) 2021 Nordic Semiconductor
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "settings_test_backend.h"
-
-#include <stdio.h>
-#include <stddef.h>
-
-#include <zephyr/kernel.h>
-#include "zephyr/types.h"
-#include "errno.h"
-
-#include <zephyr/bluetooth/mesh.h>
-#include "argparse.h"
-
-#define LOG_MODULE_NAME settings_test_backend
-#include <zephyr/logging/log.h>
-LOG_MODULE_REGISTER(LOG_MODULE_NAME);
-
-#define SETTINGS_FILE setting_file
-#define SETTINGS_FILE_TMP setting_file_tmp
-
-#define ENTRY_LEN_SIZE (4)
-#define ENTRY_NAME_MAX_LEN (SETTINGS_MAX_NAME_LEN + SETTINGS_EXTRA_LEN)
-#define ENTRY_VAL_MAX_LEN (SETTINGS_MAX_VAL_LEN * 2)
-#define READ_LEN_MAX (ENTRY_VAL_MAX_LEN + ENTRY_NAME_MAX_LEN + 2)
-
-struct line_read_ctx {
-	int len;
-	const uint8_t *val;
-};
-
-static char setting_file[50];
-static char setting_file_tmp[sizeof(setting_file) + 1];
-
-static int entry_check_and_copy(FILE *fin, FILE *fout, const char *name)
-{
-	char line[READ_LEN_MAX + 1];
-	char name_tmp[strlen(name) + 2];
-
-	snprintk(name_tmp, sizeof(name_tmp), "%s=", name);
-
-	while (fgets(line, sizeof(line), fin) == line) {
-		if (strstr(line, name_tmp) != NULL) {
-			return 0;
-		}
-
-		if (fputs(line, fout) < 0) {
-			return -1;
-		}
-	};
-
-	return 0;
-}
-
-static ssize_t settings_line_read_cb(void *cb_arg, void *data, size_t len)
-{
-	struct line_read_ctx *valctx = (struct line_read_ctx *)cb_arg;
-
-	if ((valctx->len / 2) > len) {
-		return -ENOBUFS;
-	}
-
-	uint8_t *n = (uint8_t *) data;
-	len = valctx->len / 2;
-
-	for (int i = 0; i < len; i++, n++) {
-		if (sscanf(&valctx->val[i * 2], "%2hhx", n) != 1) {
-			return 0;
-		};
-	}
-
-	return len;
-}
-
-static int settings_custom_load(struct settings_store *cs, const struct settings_load_arg *arg)
-{
-	FILE *fp = fopen(SETTINGS_FILE, "r+");
-
-	if (fp == NULL) {
-		LOG_WRN("Settings file is missing");
-		return -1;
-	}
-
-	if (fseek(fp, 0, SEEK_SET) < 0) {
-		return -1;
-	}
-
-	int vallen;
-	char line[READ_LEN_MAX + 1];
-
-	while (fgets(line, sizeof(line), fp) == line) {
-		/* check for matching subtree */
-		if (arg->subtree != NULL && !strstr(line, arg->subtree)) {
-			continue;
-		}
-
-		char *pos = strchr(line, '=');
-
-		if (pos <= line) {
-			return -1;
-		}
-
-		vallen = strlen(line) - (pos - line) - 2;
-		LOG_INF("loading entry: %s", line);
-
-		struct line_read_ctx valctx;
-
-		valctx.len = vallen;
-		valctx.val = pos + 1;
-		int err = settings_call_set_handler(line, vallen / 2, settings_line_read_cb,
-						    &valctx, arg);
-
-		if (err < 0) {
-			return err;
-		}
-	};
-
-	return fclose(fp);
-}
-
-/* Entries are saved to optimize readability of the settings file for test development and
- * debugging purposes. Format:
- * <entry-key>=<entry-value-hex-str>\n
- */
-static int settings_custom_save(struct settings_store *cs, const char *name,
-				const char *value, size_t val_len)
-{
-	FILE *fcur = fopen(SETTINGS_FILE, "r+");
-	FILE *fnew = NULL;
-
-	if (fcur == NULL) {
-		fcur = fopen(SETTINGS_FILE, "w");
-	} else {
-		fnew = fopen(SETTINGS_FILE_TMP, "w");
-		if (fnew == NULL) {
-			LOG_ERR("Failed to create temporary file %s", SETTINGS_FILE_TMP);
-			return -1;
-		}
-	}
-
-	if (fcur == NULL) {
-		LOG_ERR("Failed to create settings file: %s", SETTINGS_FILE);
-		return -1;
-	}
-
-	if (strlen(name) > ENTRY_NAME_MAX_LEN || val_len > SETTINGS_MAX_VAL_LEN) {
-		return -1;
-	}
-
-	if (fnew != NULL) {
-		if (entry_check_and_copy(fcur, fnew, name) < 0) {
-			return -1;
-		}
-	}
-
-	if (val_len) {
-		char bufvname[ENTRY_NAME_MAX_LEN + ENTRY_LEN_SIZE + 3];
-
-		snprintk(bufvname, sizeof(bufvname), "%s=", name);
-		if (fputs(bufvname, fnew != NULL ? fnew : fcur) < 0) {
-			return -1;
-		}
-
-		char bufval[ENTRY_VAL_MAX_LEN + 2] = {};
-		size_t valcnt = 0;
-
-		while (valcnt < (val_len * 2)) {
-			valcnt += snprintk(&bufval[valcnt], 3, "%02x",
-					   (uint8_t)value[valcnt / 2]);
-		};
-
-		/* helps in making settings file readable */
-		bufval[valcnt++] = '\n';
-		bufval[valcnt] = 0;
-
-		if (fputs(bufval, fnew != NULL ? fnew : fcur) < 0) {
-			return -1;
-		}
-	}
-
-	if (fnew != NULL) {
-		entry_check_and_copy(fcur, fnew, name);
-	}
-
-	fclose(fcur);
-
-	if (fnew != NULL) {
-		fclose(fnew);
-
-		remove(SETTINGS_FILE);
-		rename(SETTINGS_FILE_TMP, SETTINGS_FILE);
-	}
-
-	return 0;
-}
-
-/* custom backend interface */
-static struct settings_store_itf settings_custom_itf = {
-	.csi_load = settings_custom_load,
-	.csi_save = settings_custom_save,
-};
-
-/* custom backend node */
-static struct settings_store settings_custom_store = {
-	.cs_itf = &settings_custom_itf
-};
-
-int settings_backend_init(void)
-{
-	snprintf(setting_file, sizeof(setting_file), "%s_%d.log", get_simid(), get_device_nbr());
-	snprintf(setting_file_tmp, sizeof(setting_file_tmp), "~%s", setting_file);
-
-	LOG_INF("file path: %s", SETTINGS_FILE);
-
-	/* register custom backend */
-	settings_dst_register(&settings_custom_store);
-	settings_src_register(&settings_custom_store);
-	return 0;
-}
-
-void settings_test_backend_clear(void)
-{
-	snprintf(setting_file, sizeof(setting_file), "%s_%d.log", get_simid(), get_device_nbr());
-
-	if (remove(setting_file)) {
-		LOG_INF("error deleting file: %s", setting_file);
-	}
-}
diff --git a/tests/bsim/bluetooth/mesh/src/settings_test_backend.h b/tests/bsim/bluetooth/mesh/src/settings_test_backend.h
deleted file mode 100644
index 41537dbb91d1a1..00000000000000
--- a/tests/bsim/bluetooth/mesh/src/settings_test_backend.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/** @file
- *  @brief Settings test backend headers
- */
-
-/*
- * Copyright (c) 2021 Nordic Semiconductor ASA
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-#ifndef ZEPHYR_TESTS_BLUETOOTH_BSIM_BT_BSIM_TEST_MESH_SETTINGS_TEST_BACKEND_H_
-#define ZEPHYR_TESTS_BLUETOOTH_BSIM_BT_BSIM_TEST_MESH_SETTINGS_TEST_BACKEND_H_
-
-int settings_backend_init(void);
-
-void settings_test_backend_clear(void);
-
-#endif /* ZEPHYR_TESTS_BLUETOOTH_BSIM_BT_BSIM_TEST_MESH_SETTINGS_TEST_BACKEND_H_ */
diff --git a/tests/bsim/bluetooth/mesh/src/test_blob.c b/tests/bsim/bluetooth/mesh/src/test_blob.c
index 851357298a4ba0..564fb6fe8d1147 100644
--- a/tests/bsim/bluetooth/mesh/src/test_blob.c
+++ b/tests/bsim/bluetooth/mesh/src/test_blob.c
@@ -27,7 +27,6 @@ static enum {
 	BLOCK_GET_FAIL = 0,
 	XFER_GET_FAIL = 1
 } msg_fail_type;
-static bool recover_settings;
 static enum bt_mesh_blob_xfer_phase expected_stop_phase;
 
 static void test_args_parse(int argc, char *argv[])
@@ -53,14 +52,7 @@ static void test_args_parse(int argc, char *argv[])
 			.name = "{inactive, start, wait-block, wait-chunk, complete, suspended}",
 			.option = "expected-phase",
 			.descript = "Expected DFU Server phase value restored from flash"
-		},
-		{
-			.dest = &recover_settings,
-			.type = 'b',
-			.name = "{0, 1}",
-			.option = "recover",
-			.descript = "Recover settings from persistent storage"
-		},
+		}
 	};
 
 	bs_args_parse_all_cmd_line(argc, argv, args_struct);
@@ -1452,10 +1444,6 @@ static void test_cli_stop(void)
 {
 	int err;
 
-	if (!recover_settings) {
-		bt_mesh_test_host_files_remove();
-	}
-
 	bt_mesh_test_cfg_set(NULL, 1000);
 	k_sem_init(&blob_caps_sem, 0, 1);
 	k_sem_init(&lost_target_sem, 0, 1);
@@ -1551,10 +1539,6 @@ static void srv_check_reboot_and_continue(void)
 
 static void test_srv_stop(void)
 {
-	if (!recover_settings) {
-		bt_mesh_test_host_files_remove();
-	}
-
 	bt_mesh_test_cfg_set(NULL, 1000);
 	k_sem_init(&blob_srv_end_sem, 0, 1);
 	k_sem_init(&first_block_wr_sem, 0, 1);
diff --git a/tests/bsim/bluetooth/mesh/src/test_dfu.c b/tests/bsim/bluetooth/mesh/src/test_dfu.c
index b2824f54b46d28..f7c4ca6f4f0bf4 100644
--- a/tests/bsim/bluetooth/mesh/src/test_dfu.c
+++ b/tests/bsim/bluetooth/mesh/src/test_dfu.c
@@ -416,7 +416,6 @@ static void dist_self_update_prov_and_conf(uint16_t addr)
 
 static void target_prov_and_conf(uint16_t addr, struct bind_params *params, size_t len)
 {
-	bt_mesh_test_host_files_remove();
 	provision(addr);
 	common_configure(addr);
 
@@ -518,7 +517,6 @@ static void test_dist_dfu(void)
 {
 	enum bt_mesh_dfd_status status;
 
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 	bt_mesh_device_setup(&prov, &dist_comp);
 	dist_prov_and_conf(DIST_ADDR);
@@ -543,7 +541,6 @@ static void test_dist_dfu_self_update(void)
 
 	ASSERT_TRUE(dfu_targets_cnt > 0);
 
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 	bt_mesh_device_setup(&prov, &dist_comp_self_update);
 	dist_self_update_prov_and_conf(DIST_ADDR);
@@ -583,13 +580,11 @@ static void test_dist_dfu_slot_create(void)
 	ASSERT_TRUE(CONFIG_BT_MESH_DFU_SLOT_CNT >= 3,
 		    "CONFIG_BT_MESH_DFU_SLOT_CNT must be at least 3");
 
-	bt_mesh_test_host_files_remove();
-
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 	bt_mesh_device_setup(&prov, &dist_comp);
 	dist_prov_and_conf(DIST_ADDR);
 
-	for (i = 0; i < CONFIG_BT_MESH_DFU_SLOT_CNT; i++) {
+	for (i = CONFIG_BT_MESH_DFU_SLOT_CNT - 1; i >= 0; i--) {
 		fwid[0] = i;
 		metadata[0] = i;
 		slot[i] = bt_mesh_dfu_slot_add(size, fwid, fwid_len, metadata, metadata_len, uri,
@@ -751,7 +746,6 @@ static void target_test_effect(enum bt_mesh_dfu_effect effect)
 {
 	dfu_target_effect = effect;
 
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 	bt_mesh_device_setup(&prov, &target_comp);
 	target_prov_and_conf_default();
@@ -913,7 +907,6 @@ static void cli_common_fail_on_init(void)
 {
 	const struct bt_mesh_dfu_slot *slot;
 
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, 300);
 	bt_mesh_device_setup(&prov, &cli_comp);
 	dist_prov_and_conf(DIST_ADDR);
@@ -1406,7 +1399,6 @@ static void target_prov_and_conf_with_imposer(void)
 
 static void common_fail_on_target_init(const struct bt_mesh_comp *comp)
 {
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, 300);
 	bt_mesh_device_setup(&prov, comp);
 
@@ -1506,7 +1498,6 @@ static void test_target_dfu_stop(void)
 	dfu_target_effect = BT_MESH_DFU_EFFECT_NONE;
 
 	if (!recover) {
-		bt_mesh_test_host_files_remove();
 		bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 
 		common_fail_on_target_init(expected_stop_phase == BT_MESH_DFU_PHASE_VERIFY_FAIL ?
diff --git a/tests/bsim/bluetooth/mesh/src/test_persistence.c b/tests/bsim/bluetooth/mesh/src/test_persistence.c
index e5391d1c770b09..6c51092233051f 100644
--- a/tests/bsim/bluetooth/mesh/src/test_persistence.c
+++ b/tests/bsim/bluetooth/mesh/src/test_persistence.c
@@ -224,8 +224,6 @@ static const struct stack_cfg {
 };
 static const struct stack_cfg *current_stack_cfg;
 
-static bool clear_settings;
-
 static void test_args_parse(int argc, char *argv[])
 {
 	char *access_cfg_str = NULL;
@@ -245,14 +243,7 @@ static void test_args_parse(int argc, char *argv[])
 			.name = "{0, 1}",
 			.option = "stack-cfg",
 			.descript = ""
-		},
-		{
-			.dest = &clear_settings,
-			.type = 'b',
-			.name = "{0, 1}",
-			.option = "clear-settings",
-			.descript = "",
-		},
+		}
 	};
 
 	bs_args_parse_all_cmd_line(argc, argv, args_struct);
@@ -445,7 +436,6 @@ static void provisioner_setup(void)
 
 static void test_provisioning_data_save(void)
 {
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 
 	if (device_setup_and_self_provision()) {
@@ -636,7 +626,6 @@ static void node_configure(void)
 
 static void test_access_data_save(void)
 {
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 
 	if (device_setup_and_self_provision()) {
@@ -876,7 +865,6 @@ static void test_cfg_save(void)
 
 	ASSERT_TRUE(current_stack_cfg != NULL);
 
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 
 	if (device_setup_and_self_provision()) {
@@ -992,10 +980,6 @@ static int mesh_settings_load_cb(const char *key, size_t len, settings_read_cb r
  */
 static void test_reprovisioning_device(void)
 {
-	if (clear_settings) {
-		bt_mesh_test_host_files_remove();
-	}
-
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 
 	device_setup();
@@ -1027,7 +1011,6 @@ static void test_reprovisioning_provisioner(void)
 	int err;
 	bool status;
 
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 
 	provisioner_setup();
diff --git a/tests/bsim/bluetooth/mesh/src/test_provision.c b/tests/bsim/bluetooth/mesh/src/test_provision.c
index ad74082fc60f3c..dd78248dd05355 100644
--- a/tests/bsim/bluetooth/mesh/src/test_provision.c
+++ b/tests/bsim/bluetooth/mesh/src/test_provision.c
@@ -1182,8 +1182,6 @@ static void test_provisioner_pb_remote_client_nppi_robustness(void)
  */
 static void test_device_pb_remote_server_unproved(void)
 {
-	bt_mesh_test_host_files_remove();
-
 	device_pb_remote_server_setup_unproved(&rpr_srv_comp);
 
 	PASS();
@@ -1195,7 +1193,6 @@ static void test_device_pb_remote_server_unproved(void)
  */
 static void test_device_pb_remote_server_unproved_unresponsive(void)
 {
-	bt_mesh_test_host_files_remove();
 	device_pb_remote_server_setup_unproved(&rpr_srv_comp_unresponsive);
 
 	k_sem_init(&pdu_send_sem, 0, 1);
@@ -1306,7 +1303,6 @@ static void test_provisioner_pb_remote_client_ncrp_provision(void)
 	uint16_t pb_remote_server_addr;
 	uint8_t status;
 
-	bt_mesh_test_host_files_remove();
 	provisioner_pb_remote_client_setup();
 
 	/* Provision the 2nd device over PB-Adv. */
@@ -1433,7 +1429,6 @@ static void test_provisioner_pb_remote_client_ncrp_second_time(void)
  */
 static void test_device_pb_remote_server_ncrp_prepare(void)
 {
-	bt_mesh_test_host_files_remove();
 	device_pb_remote_server_setup_unproved(&rpr_srv_comp);
 
 	LOG_INF("Preparing for Composition Data change");
diff --git a/tests/bsim/bluetooth/mesh/src/test_replay_cache.c b/tests/bsim/bluetooth/mesh/src/test_replay_cache.c
index 6af09ee52a9a71..dbab05661cb87c 100644
--- a/tests/bsim/bluetooth/mesh/src/test_replay_cache.c
+++ b/tests/bsim/bluetooth/mesh/src/test_replay_cache.c
@@ -124,7 +124,6 @@ static void rx_sar_conf(void)
 
 static void test_tx_immediate_replay_attack(void)
 {
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_setup();
 	tx_sar_conf();
 
@@ -173,7 +172,6 @@ static void test_tx_immediate_replay_attack(void)
 
 static void test_rx_immediate_replay_attack(void)
 {
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_setup();
 	rx_sar_conf();
 	bt_mesh_test_ra_cb_setup(rx_ended);
@@ -187,7 +185,6 @@ static void test_rx_immediate_replay_attack(void)
 
 static void test_tx_power_replay_attack(void)
 {
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_setup();
 	tx_sar_conf();
 
@@ -253,7 +250,7 @@ static void send_end_cb(int err, void *cb_data)
 
 static bool msg_send(uint16_t src, uint16_t dst)
 {
-	struct bt_mesh_send_cb cb = {
+	static struct bt_mesh_send_cb cb = {
 		.end = send_end_cb,
 	};
 	struct bt_mesh_msg_ctx ctx = {
@@ -318,9 +315,11 @@ static bool ivi_update_toggle(void)
 	return res;
 }
 
+/* 1 second delays have been added to prevent interfering tail of
+ * the previous rx transaction with the beginning of the new tx transaction.
+ */
 static void test_rx_rpl_frag(void)
 {
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_setup();
 
 	k_sleep(K_SECONDS(10));
@@ -330,6 +329,8 @@ static void test_rx_rpl_frag(void)
 		ASSERT_TRUE(msg_recv(100 + i));
 	}
 
+	k_sleep(K_SECONDS(1));
+
 	/* Ask tx node to proceed to next test step. */
 	ASSERT_TRUE(msg_send(rx_cfg.addr, tx_cfg.addr));
 
@@ -342,6 +343,8 @@ static void test_rx_rpl_frag(void)
 	ASSERT_TRUE(msg_recv(100));
 	ASSERT_TRUE(msg_recv(102));
 
+	k_sleep(K_SECONDS(1));
+
 	/* Ask tx node to proceed to next test step. */
 	ASSERT_TRUE(msg_send(rx_cfg.addr, tx_cfg.addr));
 
@@ -352,6 +355,8 @@ static void test_rx_rpl_frag(void)
 	ASSERT_TRUE(msg_recv(100));
 	ASSERT_TRUE(msg_recv(102));
 
+	k_sleep(K_SECONDS(1));
+
 	/* Start IVI Update again. */
 	/* RPL entry with odd address should be removed causing fragmentation in RPL. old_iv flag
 	 * for even entries will be set to 1.
@@ -384,9 +389,11 @@ static void test_rx_rpl_frag(void)
 	PASS();
 }
 
+/* 1 second delays have been added to prevent interfering tail of
+ * the previous rx transaction with the beginning of the new tx transaction.
+ */
 static void test_tx_rpl_frag(void)
 {
-	bt_mesh_test_host_files_remove();
 	bt_mesh_test_setup();
 
 	k_sleep(K_SECONDS(10));
@@ -396,11 +403,11 @@ static void test_tx_rpl_frag(void)
 		ASSERT_TRUE(msg_send(100 + i, rx_cfg.addr));
 	}
 
-	k_sleep(K_SECONDS(3));
-
 	/* Wait for the rx node. */
 	ASSERT_TRUE(msg_recv(rx_cfg.addr));
 
+	k_sleep(K_SECONDS(1));
+
 	/* Start IVI Update. */
 	ASSERT_TRUE(ivi_update_toggle());
 
@@ -411,6 +418,8 @@ static void test_tx_rpl_frag(void)
 	/* Wait for the rx node. */
 	ASSERT_TRUE(msg_recv(rx_cfg.addr));
 
+	k_sleep(K_SECONDS(1));
+
 	/* Complete IVI Update. */
 	ASSERT_FALSE(ivi_update_toggle());
 
diff --git a/tests/bsim/bluetooth/mesh/src/test_sar.c b/tests/bsim/bluetooth/mesh/src/test_sar.c
index 5d23233efa2c69..a928d973a25339 100644
--- a/tests/bsim/bluetooth/mesh/src/test_sar.c
+++ b/tests/bsim/bluetooth/mesh/src/test_sar.c
@@ -258,8 +258,6 @@ static void test_srv_cfg_store(void)
 	struct bt_mesh_sar_rx rx_cfg;
 	struct bt_mesh_sar_tx tx_cfg;
 
-	bt_mesh_test_host_files_remove();
-
 	bt_mesh_test_cfg_set(NULL, WAIT_TIME);
 	bt_mesh_device_setup(&prov, &comp);
 	prov_and_conf(SRV_ADDR, &test_sar_rx, &test_sar_tx);
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/blob_mdls/blob_srv_persistence.sh b/tests/bsim/bluetooth/mesh/tests_scripts/blob_mdls/blob_srv_persistence.sh
index 241a6bd2d105c4..8c59c82da6feef 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/blob_mdls/blob_srv_persistence.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/blob_mdls/blob_srv_persistence.sh
@@ -6,68 +6,69 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 
 # Note:
 # Tests must be added in pairs and in sequence.
-# Tests with recover set to 0 clear previous settings and start new procedure.
-# Tests with recover set to 1 load stored settings and continue procedure to next phase.
+# Tests with -flash_erase run with clear flash and start new procedure.
+# Tests with -flash_rm clean up stored settings after them
+# to run tests with -flash_erase correctly.
 # Test cases are designed to be run using single target.
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest blob_recover_phase blob_cli_stop blob_srv_stop -- -argstest \
-   recover=0 expected-phase=1
+RunTestFlash blob_recover_phase \
+   blob_cli_stop -flash_erase blob_srv_stop -flash_erase -- -argstest expected-phase=1
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest blob_recover_phase blob_cli_stop blob_srv_stop -- -argstest \
-   recover=1 expected-phase=2
+RunTestFlash blob_recover_phase \
+   blob_cli_stop blob_srv_stop -- -argstest expected-phase=2
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest blob_recover_phase blob_cli_stop blob_srv_stop -- -argstest \
-   recover=1 expected-phase=3
+RunTestFlash blob_recover_phase \
+   blob_cli_stop blob_srv_stop -- -argstest expected-phase=3
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest blob_recover_phase blob_cli_stop blob_srv_stop -- -argstest \
-   recover=1 expected-phase=4
+RunTestFlash blob_recover_phase \
+   blob_cli_stop -flash_rm blob_srv_stop -flash_rm -- -argstest expected-phase=4
 
 # Test reaching suspended state and continuation after reboot on new procedure.
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest blob_recover_phase blob_cli_stop blob_srv_stop -- -argstest \
-   recover=0 expected-phase=5
+RunTestFlash blob_recover_phase \
+   blob_cli_stop -flash_erase blob_srv_stop -flash_erase -- -argstest expected-phase=5
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest blob_recover_phase blob_cli_stop blob_srv_stop -- -argstest \
-   recover=1 expected-phase=4
+RunTestFlash blob_recover_phase \
+   blob_cli_stop -flash_rm blob_srv_stop -flash_rm -- -argstest expected-phase=4
 
 # The same test but with PSA crypto
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest blob_recover_phase_psa blob_cli_stop blob_srv_stop -- -argstest \
-   recover=0 expected-phase=1
+RunTestFlash blob_recover_phase_psa \
+   blob_cli_stop -flash_erase blob_srv_stop -flash_erase -- -argstest expected-phase=1
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest blob_recover_phase_psa blob_cli_stop blob_srv_stop -- -argstest \
-   recover=1 expected-phase=2
+RunTestFlash blob_recover_phase_psa \
+   blob_cli_stop blob_srv_stop -- -argstest expected-phase=2
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest blob_recover_phase_psa blob_cli_stop blob_srv_stop -- -argstest \
-   recover=1 expected-phase=3
+RunTestFlash blob_recover_phase_psa \
+   blob_cli_stop blob_srv_stop -- -argstest expected-phase=3
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest blob_recover_phase_psa blob_cli_stop blob_srv_stop -- -argstest \
-   recover=1 expected-phase=4
+RunTestFlash blob_recover_phase_psa \
+   blob_cli_stop -flash_rm blob_srv_stop -flash_rm -- -argstest expected-phase=4
 
 # Test reaching suspended state and continuation after reboot on new procedure.
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest blob_recover_phase_psa blob_cli_stop blob_srv_stop -- -argstest \
-   recover=0 expected-phase=5
+RunTestFlash blob_recover_phase_psa \
+   blob_cli_stop -flash_erase blob_srv_stop -flash_erase -- -argstest expected-phase=5
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest blob_recover_phase_psa blob_cli_stop blob_srv_stop -- -argstest \
-   recover=1 expected-phase=4
+RunTestFlash blob_recover_phase_psa \
+   blob_cli_stop -flash_rm blob_srv_stop -flash_rm -- -argstest expected-phase=4
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/dfu/dfu_slot.sh b/tests/bsim/bluetooth/mesh/tests_scripts/dfu/dfu_slot.sh
index 63beed915e6274..c187d8cfbffcf2 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/dfu/dfu_slot.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/dfu/dfu_slot.sh
@@ -13,20 +13,20 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 #    from storage.
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest dfu_slot dfu_dist_dfu_slot_create
+RunTestFlash dfu_slot dfu_dist_dfu_slot_create -flash_erase
 
-RunTest dfu_slot dfu_dist_dfu_slot_create_recover
+RunTestFlash dfu_slot dfu_dist_dfu_slot_create_recover
 
-RunTest dfu_slot dfu_dist_dfu_slot_delete_all
+RunTestFlash dfu_slot dfu_dist_dfu_slot_delete_all
 
-RunTest dfu_slot dfu_dist_dfu_slot_check_delete_all
+RunTestFlash dfu_slot dfu_dist_dfu_slot_check_delete_all -flash_rm
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest dfu_slot_psa dfu_dist_dfu_slot_create
+RunTestFlash dfu_slot_psa dfu_dist_dfu_slot_create -flash_erase
 
-RunTest dfu_slot_psa dfu_dist_dfu_slot_create_recover
+RunTestFlash dfu_slot_psa dfu_dist_dfu_slot_create_recover
 
-RunTest dfu_slot_psa dfu_dist_dfu_slot_delete_all
+RunTestFlash dfu_slot_psa dfu_dist_dfu_slot_delete_all
 
-RunTest dfu_slot_psa dfu_dist_dfu_slot_check_delete_all
+RunTestFlash dfu_slot_psa dfu_dist_dfu_slot_check_delete_all -flash_rm
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/dfu/dfu_srv_persistence.sh b/tests/bsim/bluetooth/mesh/tests_scripts/dfu/dfu_srv_persistence.sh
index 119261ce1c52b7..6ed7099c987048 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/dfu/dfu_srv_persistence.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/dfu/dfu_srv_persistence.sh
@@ -15,77 +15,91 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 # plays dummy role, and is there to keep order of settings files being loaded.
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest dfu_dist_recover_phase dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-   recover=0 expected-phase=2
+RunTestFlash dfu_dist_recover_phase \
+  dfu_cli_stop -flash_erase dfu_target_dfu_stop -flash_erase \
+  -- -argstest recover=0 expected-phase=2
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest dfu_dist_recover_phase dfu_cli_stop dfu_target_dfu_stop  -- -argstest \
-  recover=1 expected-phase=3
+RunTestFlash dfu_dist_recover_phase \
+  dfu_cli_stop dfu_target_dfu_stop \
+  -- -argstest recover=1 expected-phase=3
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest dfu_dist_recover_phase dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-  recover=1 expected-phase=4
+RunTestFlash dfu_dist_recover_phase \
+  dfu_cli_stop dfu_target_dfu_stop \
+  -- -argstest recover=1 expected-phase=4
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest dfu_dist_recover_phase dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-  recover=1 expected-phase=6
+RunTestFlash dfu_dist_recover_phase \
+  dfu_cli_stop dfu_target_dfu_stop \
+  -- -argstest recover=1 expected-phase=6
 
 # Use phase `BT_MESH_DFU_PHASE_APPLY_SUCCESS` as marker to bring whole procedure to an end
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest dfu_dist_recover_phase dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-  recover=1 expected-phase=8
+RunTestFlash dfu_dist_recover_phase \
+  dfu_cli_stop -flash_rm dfu_target_dfu_stop -flash_rm \
+  -- -argstest recover=1 expected-phase=8
 
 # To test recovery from Verify Fail begin new distribution that will end there,
 # reboot devices and continue to Applying.
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest dfu_dist_recover_phase dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-   recover=0 expected-phase=5
+RunTestFlash dfu_dist_recover_phase \
+  dfu_cli_stop -flash_erase dfu_target_dfu_stop -flash_erase \
+  -- -argstest recover=0 expected-phase=5
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest dfu_dist_recover_phase dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-   recover=1 expected-phase=6
+RunTestFlash dfu_dist_recover_phase \
+  dfu_cli_stop -flash_rm dfu_target_dfu_stop -flash_rm \
+  -- -argstest recover=1 expected-phase=6
 
 # The same test but with PSA crypto
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest dfu_dist_recover_phase_psa dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-   recover=0 expected-phase=2
+RunTestFlash dfu_dist_recover_phase_psa \
+  dfu_cli_stop -flash_erase dfu_target_dfu_stop -flash_erase \
+  -- -argstest recover=0 expected-phase=2
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest dfu_dist_recover_phase_psa dfu_cli_stop dfu_target_dfu_stop  -- -argstest \
-  recover=1 expected-phase=3
+RunTestFlash dfu_dist_recover_phase_psa \
+  dfu_cli_stop dfu_target_dfu_stop \
+  -- -argstest recover=1 expected-phase=3
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest dfu_dist_recover_phase_psa dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-  recover=1 expected-phase=4
+RunTestFlash dfu_dist_recover_phase_psa \
+  dfu_cli_stop dfu_target_dfu_stop \
+  -- -argstest recover=1 expected-phase=4
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest dfu_dist_recover_phase_psa dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-  recover=1 expected-phase=6
+RunTestFlash dfu_dist_recover_phase_psa \
+  dfu_cli_stop dfu_target_dfu_stop \
+  -- -argstest recover=1 expected-phase=6
 
 # Use phase `BT_MESH_DFU_PHASE_APPLY_SUCCESS` as marker to bring whole procedure to an end
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest dfu_dist_recover_phase_psa dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-  recover=1 expected-phase=8
+RunTestFlash dfu_dist_recover_phase_psa \
+  dfu_cli_stop -flash_rm dfu_target_dfu_stop -flash_rm \
+  -- -argstest recover=1 expected-phase=8
 
 # To test recovery from Verify Fail begin new distribution that will end there,
 # reboot devices and continue to Applying.
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest dfu_dist_recover_phase_psa dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-   recover=0 expected-phase=5
+RunTestFlash dfu_dist_recover_phase_psa \
+  dfu_cli_stop -flash_erase dfu_target_dfu_stop -flash_erase \
+  -- -argstest recover=0 expected-phase=5
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest dfu_dist_recover_phase_psa dfu_cli_stop dfu_target_dfu_stop -- -argstest \
-   recover=1 expected-phase=6
+RunTestFlash dfu_dist_recover_phase_psa \
+  dfu_cli_stop -flash_rm dfu_target_dfu_stop -flash_rm \
+  -- -argstest recover=1 expected-phase=6
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/persistence/access.sh b/tests/bsim/bluetooth/mesh/tests_scripts/persistence/access.sh
index 54c115c0673e9f..0392430adbae16 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/persistence/access.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/persistence/access.sh
@@ -9,82 +9,82 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 # First test: saves data; second test: verifies it.
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check persistence_access_data_save
+RunTestFlash mesh_pst_access_data_check persistence_access_data_save -flash_erase
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check persistence_access_data_load --\
-	-argstest access-cfg=configured
+RunTestFlash mesh_pst_access_data_check persistence_access_data_load \
+	-- -argstest access-cfg=configured
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check persistence_access_sub_overwrite --\
-	-argstest access-cfg=configured
+RunTestFlash mesh_pst_access_data_check persistence_access_sub_overwrite \
+	-- -argstest access-cfg=configured
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check persistence_access_data_load --\
-	-argstest access-cfg=new-subs
+RunTestFlash mesh_pst_access_data_check persistence_access_data_load \
+	-- -argstest access-cfg=new-subs
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check persistence_access_data_remove --\
-	-argstest access-cfg=new-subs
+RunTestFlash mesh_pst_access_data_check persistence_access_data_remove \
+	-- -argstest access-cfg=new-subs
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check persistence_access_data_load --\
-	-argstest access-cfg=not-configured
+RunTestFlash mesh_pst_access_data_check persistence_access_data_load -flash_rm \
+	-- -argstest access-cfg=not-configured
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check_1d1 persistence_access_data_save
+RunTestFlash mesh_pst_access_data_check_1d1 persistence_access_data_save -flash_erase
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check_1d1 persistence_access_data_load --\
-	-argstest access-cfg=configured
+RunTestFlash mesh_pst_access_data_check_1d1 persistence_access_data_load \
+	-- -argstest access-cfg=configured
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check_1d1 persistence_access_sub_overwrite --\
-	-argstest access-cfg=configured
+RunTestFlash mesh_pst_access_data_check_1d1 persistence_access_sub_overwrite \
+	-- -argstest access-cfg=configured
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check_1d1 persistence_access_data_load --\
-	-argstest access-cfg=new-subs
+RunTestFlash mesh_pst_access_data_check_1d1 persistence_access_data_load \
+	-- -argstest access-cfg=new-subs
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check_1d1 persistence_access_data_remove --\
-	-argstest access-cfg=new-subs
+RunTestFlash mesh_pst_access_data_check_1d1 persistence_access_data_remove \
+	-- -argstest access-cfg=new-subs
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_access_data_check_1d1 persistence_access_data_load --\
-	-argstest access-cfg=not-configured
+RunTestFlash mesh_pst_access_data_check_1d1 persistence_access_data_load -flash_rm \
+	-- -argstest access-cfg=not-configured
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_access_data_check_psa persistence_access_data_save
+RunTestFlash mesh_pst_access_data_check_psa persistence_access_data_save -flash_erase
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_access_data_check_psa persistence_access_data_load --\
-	-argstest access-cfg=configured
+RunTestFlash mesh_pst_access_data_check_psa persistence_access_data_load \
+	-- -argstest access-cfg=configured
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_access_data_check_psa persistence_access_sub_overwrite --\
-	-argstest access-cfg=configured
+RunTestFlash mesh_pst_access_data_check_psa persistence_access_sub_overwrite \
+	-- -argstest access-cfg=configured
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_access_data_check_psa persistence_access_data_load --\
-	-argstest access-cfg=new-subs
+RunTestFlash mesh_pst_access_data_check_psa persistence_access_data_load \
+	-- -argstest access-cfg=new-subs
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_access_data_check_psa persistence_access_data_remove --\
-	-argstest access-cfg=new-subs
+RunTestFlash mesh_pst_access_data_check_psa persistence_access_data_remove \
+	-- -argstest access-cfg=new-subs
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_access_data_check_psa persistence_access_data_load --\
-	-argstest access-cfg=not-configured
+RunTestFlash mesh_pst_access_data_check_psa persistence_access_data_load -flash_rm \
+	-- -argstest access-cfg=not-configured
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/persistence/cfg.sh b/tests/bsim/bluetooth/mesh/tests_scripts/persistence/cfg.sh
index 4368700d5b9c8c..bb3074905a98f3 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/persistence/cfg.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/persistence/cfg.sh
@@ -9,45 +9,57 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 # First test: saves data; second test: verifies it.
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_cfg_check persistence_cfg_save -- -argstest stack-cfg=0
+RunTestFlash mesh_pst_cfg_check persistence_cfg_save -flash_erase \
+    -- -argstest stack-cfg=0
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_cfg_check persistence_cfg_load -- -argstest stack-cfg=0
+RunTestFlash mesh_pst_cfg_check persistence_cfg_load -flash_rm \
+    -- -argstest stack-cfg=0
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_cfg_check persistence_cfg_save -- -argstest stack-cfg=1
+RunTestFlash mesh_pst_cfg_check persistence_cfg_save -flash_erase \
+    -- -argstest stack-cfg=1
 
 overlay=overlay_pst_conf
-RunTest mesh_pst_cfg_check persistence_cfg_load -- -argstest stack-cfg=1
+RunTestFlash mesh_pst_cfg_check persistence_cfg_load -flash_rm \
+    -- -argstest stack-cfg=1
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_cfg_check_1d1 persistence_cfg_save -- -argstest stack-cfg=0
+RunTestFlash mesh_pst_cfg_check_1d1 persistence_cfg_save -flash_erase \
+     -- -argstest stack-cfg=0
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_cfg_check_1d1 persistence_cfg_load -- -argstest stack-cfg=0
+RunTestFlash mesh_pst_cfg_check_1d1 persistence_cfg_load -flash_rm \
+    -- -argstest stack-cfg=0
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_cfg_check_1d1 persistence_cfg_save -- -argstest stack-cfg=1
+RunTestFlash mesh_pst_cfg_check_1d1 persistence_cfg_save -flash_erase \
+    -- -argstest stack-cfg=1
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_cfg_check_1d1 persistence_cfg_load -- -argstest stack-cfg=1
+RunTestFlash mesh_pst_cfg_check_1d1 persistence_cfg_load -flash_rm \
+    -- -argstest stack-cfg=1
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_cfg_check_psa persistence_cfg_save -- -argstest stack-cfg=0
+RunTestFlash mesh_pst_cfg_check_psa persistence_cfg_save -flash_erase \
+    -- -argstest stack-cfg=0
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_cfg_check_psa persistence_cfg_load -- -argstest stack-cfg=0
+RunTestFlash mesh_pst_cfg_check_psa persistence_cfg_load -flash_rm \
+    -- -argstest stack-cfg=0
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_cfg_check_psa persistence_cfg_save -- -argstest stack-cfg=1
+RunTestFlash mesh_pst_cfg_check_psa persistence_cfg_save -flash_erase \
+    -- -argstest stack-cfg=1
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_cfg_check_psa persistence_cfg_load -- -argstest stack-cfg=1
+RunTestFlash mesh_pst_cfg_check_psa persistence_cfg_load -flash_rm \
+    -- -argstest stack-cfg=1
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/persistence/provisioning.sh b/tests/bsim/bluetooth/mesh/tests_scripts/persistence/provisioning.sh
index 277adff0b55ab1..f1e0591ef133e2 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/persistence/provisioning.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/persistence/provisioning.sh
@@ -10,24 +10,24 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 
 # SKIP=(persistence_provisioning_data_save)
 overlay=overlay_pst_conf
-RunTest mesh_pst_prov_data_check persistence_provisioning_data_save
+RunTestFlash mesh_pst_prov_data_check persistence_provisioning_data_save -flash_erase
 
 # SKIP=(persistence_provisioning_data_load)
 overlay=overlay_pst_conf
-RunTest mesh_pst_prov_data_check persistence_provisioning_data_load
+RunTestFlash mesh_pst_prov_data_check persistence_provisioning_data_load -flash_rm
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_prov_data_check_1d1 persistence_provisioning_data_save
+RunTestFlash mesh_pst_prov_data_check_1d1 persistence_provisioning_data_save -flash_erase
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_pst_prov_data_check_1d1 persistence_provisioning_data_load
+RunTestFlash mesh_pst_prov_data_check_1d1 persistence_provisioning_data_load -flash_rm
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_prov_data_check_psa persistence_provisioning_data_save
+RunTestFlash mesh_pst_prov_data_check_psa persistence_provisioning_data_save -flash_erase
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_pst_prov_data_check_psa persistence_provisioning_data_load
+RunTestFlash mesh_pst_prov_data_check_psa persistence_provisioning_data_load -flash_rm
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/persistence/reprovisioning.sh b/tests/bsim/bluetooth/mesh/tests_scripts/persistence/reprovisioning.sh
index 3ecf7e90fe5a2b..922b4c8a513830 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/persistence/reprovisioning.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/persistence/reprovisioning.sh
@@ -11,29 +11,35 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 # Provision, configure and reset a device
 overlay=overlay_pst_conf
 RunTest mesh_pst_repr persistence_reprovisioning_device \
-	persistence_reprovisioning_provisioner -- -argstest clear-settings=1
+    -flash=../results/mesh_pst_repr/flash.bin -flash_erase \
+	persistence_reprovisioning_provisioner
 
 # Repeat the test
 overlay=overlay_pst_conf
 RunTest mesh_pst_repr persistence_reprovisioning_device \
+	-flash=../results/mesh_pst_repr/flash.bin -flash_rm \
 	persistence_reprovisioning_provisioner
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
 RunTest mesh_pst_repr_1d1 persistence_reprovisioning_device \
-	persistence_reprovisioning_provisioner -- -argstest clear-settings=1
+    -flash=../results/mesh_pst_repr_1d1/flash.bin -flash_erase \
+	persistence_reprovisioning_provisioner
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
 RunTest mesh_pst_repr_1d1 persistence_reprovisioning_device \
+	-flash=../results/mesh_pst_repr_1d1/flash.bin -flash_rm \
 	persistence_reprovisioning_provisioner
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
 RunTest mesh_pst_repr_psa persistence_reprovisioning_device \
-	persistence_reprovisioning_provisioner -- -argstest clear-settings=1
+    -flash=../results/mesh_pst_repr_psa/flash.bin -flash_erase \
+	persistence_reprovisioning_provisioner
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
 RunTest mesh_pst_repr_psa persistence_reprovisioning_device \
+	-flash=../results/mesh_pst_repr_psa/flash.bin -flash_rm \
 	persistence_reprovisioning_provisioner
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/provision/pb_remote_pst_ncrp.sh b/tests/bsim/bluetooth/mesh/tests_scripts/provision/pb_remote_pst_ncrp.sh
index f8669cbc43c4b9..4329d25a823851 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/provision/pb_remote_pst_ncrp.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/provision/pb_remote_pst_ncrp.sh
@@ -31,15 +31,15 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 # Step 1
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_prov_pst_pb_remote_ncrp \
-	prov_provisioner_pb_remote_client_ncrp_provision \
-	prov_device_pb_remote_server_unproved \
-	prov_device_pb_remote_server_ncrp_prepare
+RunTestFlash mesh_prov_pst_pb_remote_ncrp \
+	prov_provisioner_pb_remote_client_ncrp_provision -flash_erase \
+	prov_device_pb_remote_server_unproved -flash_erase \
+	prov_device_pb_remote_server_ncrp_prepare -flash_erase
 
 # Step 2
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_prov_pst_pb_remote_ncrp \
+RunTestFlash mesh_prov_pst_pb_remote_ncrp \
 	prov_provisioner_pb_remote_client_ncrp \
 	prov_device_pb_remote_server_proved \
 	prov_device_pb_remote_server_ncrp
@@ -47,24 +47,24 @@ RunTest mesh_prov_pst_pb_remote_ncrp \
 # Step 3
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_prov_pst_pb_remote_ncrp \
-	prov_provisioner_pb_remote_client_ncrp_second_time \
-	prov_device_pb_remote_server_proved \
-	prov_device_pb_remote_server_ncrp_second_time
+RunTestFlash mesh_prov_pst_pb_remote_ncrp \
+	prov_provisioner_pb_remote_client_ncrp_second_time -flash_rm \
+	prov_device_pb_remote_server_proved -flash_rm \
+	prov_device_pb_remote_server_ncrp_second_time -flash_rm
 
 # The same test but with PSA crypto
 # Step 1
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_prov_pst_pb_remote_ncrp_psa \
-	prov_provisioner_pb_remote_client_ncrp_provision \
-	prov_device_pb_remote_server_unproved \
-	prov_device_pb_remote_server_ncrp_prepare
+RunTestFlash mesh_prov_pst_pb_remote_ncrp_psa \
+	prov_provisioner_pb_remote_client_ncrp_provision -flash_erase \
+	prov_device_pb_remote_server_unproved -flash_erase \
+	prov_device_pb_remote_server_ncrp_prepare -flash_erase
 
 # Step 2
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_prov_pst_pb_remote_ncrp_psa \
+RunTestFlash mesh_prov_pst_pb_remote_ncrp_psa \
 	prov_provisioner_pb_remote_client_ncrp \
 	prov_device_pb_remote_server_proved \
 	prov_device_pb_remote_server_ncrp
@@ -72,7 +72,7 @@ RunTest mesh_prov_pst_pb_remote_ncrp_psa \
 # Step 3
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_prov_pst_pb_remote_ncrp_psa \
-	prov_provisioner_pb_remote_client_ncrp_second_time \
-	prov_device_pb_remote_server_proved \
-	prov_device_pb_remote_server_ncrp_second_time
+RunTestFlash mesh_prov_pst_pb_remote_ncrp_psa \
+	prov_provisioner_pb_remote_client_ncrp_second_time -flash_rm \
+	prov_device_pb_remote_server_proved -flash_rm \
+	prov_device_pb_remote_server_ncrp_second_time -flash_rm
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/replay_cache/replay_attack.sh b/tests/bsim/bluetooth/mesh/tests_scripts/replay_cache/replay_attack.sh
index 190e9e422b9c5c..50387776dfb3ba 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/replay_cache/replay_attack.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/replay_cache/replay_attack.sh
@@ -6,34 +6,34 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 
 overlay=overlay_pst_conf
 RunTest mesh_replay_attack \
-	rpc_tx_immediate_replay_attack \
-	rpc_rx_immediate_replay_attack
+    rpc_tx_immediate_replay_attack \
+    rpc_rx_immediate_replay_attack -flash=../results/mesh_replay_attack/flash.bin -flash_erase
 
 overlay=overlay_pst_conf
 RunTest mesh_replay_attack \
-	rpc_tx_power_replay_attack \
-	rpc_rx_power_replay_attack
+    rpc_tx_power_replay_attack \
+    rpc_rx_power_replay_attack -flash=../results/mesh_replay_attack/flash.bin -flash_rm
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
 RunTest mesh_replay_attack_1d1 \
-	rpc_tx_immediate_replay_attack \
-	rpc_rx_immediate_replay_attack
+    rpc_tx_immediate_replay_attack \
+    rpc_rx_immediate_replay_attack -flash=../results/mesh_replay_attack_1d1/flash.bin -flash_erase
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
 RunTest mesh_replay_attack_1d1 \
-	rpc_tx_power_replay_attack \
-	rpc_rx_power_replay_attack
+    rpc_tx_power_replay_attack \
+    rpc_rx_power_replay_attack -flash=../results/mesh_replay_attack_1d1/flash.bin -flash_rm
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
 RunTest mesh_replay_attack_psa \
-	rpc_tx_immediate_replay_attack \
-	rpc_rx_immediate_replay_attack
+    rpc_tx_immediate_replay_attack \
+    rpc_rx_immediate_replay_attack -flash=../results/mesh_replay_attack_psa/flash.bin -flash_erase
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
 RunTest mesh_replay_attack_psa \
-	rpc_tx_power_replay_attack \
-	rpc_rx_power_replay_attack
+    rpc_tx_power_replay_attack \
+    rpc_rx_power_replay_attack -flash=../results/mesh_replay_attack_psa/flash.bin -flash_rm
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/replay_cache/rpl_frag.sh b/tests/bsim/bluetooth/mesh/tests_scripts/replay_cache/rpl_frag.sh
index 95731027607651..8c7a7866eb32e0 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/replay_cache/rpl_frag.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/replay_cache/rpl_frag.sh
@@ -12,24 +12,33 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 # 4. Complete IVI Update;
 # 5. Repeate steps 2 - 4 to remove RPL entry with odd address from RPL and cause fragmentation;
 overlay=overlay_pst_conf
-RunTest mesh_replay_fragmentation rpc_rx_rpl_frag rpc_tx_rpl_frag
+RunTest mesh_replay_fragmentation \
+    rpc_rx_rpl_frag -flash=../results/mesh_replay_fragmentation/flash.bin -flash_erase \
+    rpc_tx_rpl_frag
 
 # Simulate reboot and test that RPL entries are restored correctly after defragmentation
 overlay=overlay_pst_conf
-RunTest mesh_replay_fragmentation rpc_rx_reboot_after_defrag
+RunTest mesh_replay_fragmentation \
+    rpc_rx_reboot_after_defrag -flash=../results/mesh_replay_fragmentation/flash.bin -flash_rm
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_replay_fragmentation_1d1 rpc_rx_rpl_frag rpc_tx_rpl_frag
+RunTest mesh_replay_fragmentation_1d1 \
+    rpc_rx_rpl_frag -flash=../results/mesh_replay_fragmentation_1d1/flash.bin -flash_erase \
+    rpc_tx_rpl_frag
 
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest mesh_replay_fragmentation_1d1 rpc_rx_reboot_after_defrag
+RunTest mesh_replay_fragmentation_1d1 \
+    rpc_rx_reboot_after_defrag -flash=../results/mesh_replay_fragmentation_1d1/flash.bin -flash_rm
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_replay_fragmentation_psa rpc_rx_rpl_frag rpc_tx_rpl_frag
+RunTest mesh_replay_fragmentation_psa \
+    rpc_rx_rpl_frag -flash=../results/mesh_replay_fragmentation_psa/flash.bin -flash_erase \
+    rpc_tx_rpl_frag
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest mesh_replay_fragmentation_psa rpc_rx_reboot_after_defrag
+RunTest mesh_replay_fragmentation_psa \
+    rpc_rx_reboot_after_defrag -flash=../results/mesh_replay_fragmentation_psa/flash.bin -flash_rm
diff --git a/tests/bsim/bluetooth/mesh/tests_scripts/sar/sar_cfg_persistent_storage.sh b/tests/bsim/bluetooth/mesh/tests_scripts/sar/sar_cfg_persistent_storage.sh
index dbe8685d3707aa..dc27c4dcedafdb 100755
--- a/tests/bsim/bluetooth/mesh/tests_scripts/sar/sar_cfg_persistent_storage.sh
+++ b/tests/bsim/bluetooth/mesh/tests_scripts/sar/sar_cfg_persistent_storage.sh
@@ -10,10 +10,10 @@ source $(dirname "${BASH_SOURCE[0]}")/../../_mesh_test.sh
 # Second test restores it from flash and checks if configuration persisted.
 conf=prj_mesh1d1_conf
 overlay=overlay_pst_conf
-RunTest sar_persistence sar_srv_cfg_store
-RunTest sar_persistence sar_srv_cfg_restore
+RunTestFlash sar_persistence sar_srv_cfg_store -flash_erase
+RunTestFlash sar_persistence sar_srv_cfg_restore -flash_rm
 
 conf=prj_mesh1d1_conf
 overlay="overlay_pst_conf_overlay_psa_conf"
-RunTest sar_persistence_psa sar_srv_cfg_store
-RunTest sar_persistence_psa sar_srv_cfg_restore
+RunTestFlash sar_persistence_psa sar_srv_cfg_store -flash_erase
+RunTestFlash sar_persistence_psa sar_srv_cfg_restore -flash_rm