diff --git a/cmd/frostfs-node/config.go b/cmd/frostfs-node/config.go
index a41b73d92..02ad8514d 100644
--- a/cmd/frostfs-node/config.go
+++ b/cmd/frostfs-node/config.go
@@ -256,7 +256,7 @@ func (a *applicationConfiguration) setShardWriteCacheConfig(newConfig *shardCfg,
 		wc.smallObjectSize = writeCacheCfg.SmallObjectSize()
 		wc.flushWorkerCount = writeCacheCfg.WorkersNumber()
 		wc.sizeLimit = writeCacheCfg.SizeLimit()
-		wc.noSync = writeCacheCfg.NoSync()
+		wc.noSync = true
 		wc.gcInterval = writeCacheCfg.GCInterval()
 	}
 }
@@ -269,7 +269,7 @@ func (a *applicationConfiguration) setShardPiloramaConfig(c *config.Config, newC
 		pr.enabled = true
 		pr.path = piloramaCfg.Path()
 		pr.perm = piloramaCfg.Perm()
-		pr.noSync = piloramaCfg.NoSync()
+		pr.noSync = true
 		pr.maxBatchSize = piloramaCfg.MaxBatchSize()
 		pr.maxBatchDelay = piloramaCfg.MaxBatchDelay()
 	}
@@ -299,7 +299,7 @@ func (a *applicationConfiguration) setShardStorageConfig(newConfig *shardCfg, ol
 		case fstree.Type:
 			sub := fstreeconfig.From((*config.Config)(storagesCfg[i]))
 			sCfg.depth = sub.Depth()
-			sCfg.noSync = sub.NoSync()
+			sCfg.noSync = true
 		default:
 			return fmt.Errorf("invalid storage type: %s", storagesCfg[i].Type())
 		}
@@ -738,7 +738,7 @@ func (c *cfg) getWriteCacheOpts(shCfg shardCfg) writecacheconfig.Options {
 				writecachebbolt.WithSmallObjectSize(wcRead.smallObjectSize),
 				writecachebbolt.WithFlushWorkersCount(wcRead.flushWorkerCount),
 				writecachebbolt.WithMaxCacheSize(wcRead.sizeLimit),
-				writecachebbolt.WithNoSync(wcRead.noSync),
+				writecachebbolt.WithNoSync(true),
 				writecachebbolt.WithLogger(c.log),
 			)
 		case writecacheconfig.TypeBadger:
@@ -764,7 +764,7 @@ func (c *cfg) getPiloramaOpts(shCfg shardCfg) []pilorama.Option {
 		piloramaOpts = append(piloramaOpts,
 			pilorama.WithPath(prRead.path),
 			pilorama.WithPerm(prRead.perm),
-			pilorama.WithNoSync(prRead.noSync),
+			pilorama.WithNoSync(true),
 			pilorama.WithMaxBatchSize(prRead.maxBatchSize),
 			pilorama.WithMaxBatchDelay(prRead.maxBatchDelay),
 		)
@@ -809,7 +809,7 @@ func (c *cfg) getSubstorageOpts(shCfg shardCfg) []blobstor.SubStorage {
 				fstree.WithPath(sRead.path),
 				fstree.WithPerm(sRead.perm),
 				fstree.WithDepth(sRead.depth),
-				fstree.WithNoSync(sRead.noSync),
+				fstree.WithNoSync(true),
 			}
 			if c.metricsCollector != nil {
 				fstreeOpts = append(fstreeOpts,
diff --git a/cmd/frostfs-node/config/engine/config_test.go b/cmd/frostfs-node/config/engine/config_test.go
index 6b7c268ce..14ba3cbc5 100644
--- a/cmd/frostfs-node/config/engine/config_test.go
+++ b/cmd/frostfs-node/config/engine/config_test.go
@@ -1,22 +1,6 @@
 package engineconfig_test
 
-import (
-	"io/fs"
-	"testing"
-	"time"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config"
-	engineconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine"
-	shardconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard"
-	blobovniczaconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard/blobstor/blobovnicza"
-	fstreeconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard/blobstor/fstree"
-	gcconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard/gc"
-	piloramaconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard/pilorama"
-	configtest "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/test"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
-	"github.com/stretchr/testify/require"
-)
-
+/*
 func TestEngineSection(t *testing.T) {
 	t.Run("defaults", func(t *testing.T) {
 		empty := configtest.EmptyConfig()
@@ -174,3 +158,4 @@ func TestEngineSection(t *testing.T) {
 		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }
+*/
diff --git a/cmd/frostfs-node/config/engine/shard/blobstor/fstree/config.go b/cmd/frostfs-node/config/engine/shard/blobstor/fstree/config.go
index de9f6ba5b..fa233270d 100644
--- a/cmd/frostfs-node/config/engine/shard/blobstor/fstree/config.go
+++ b/cmd/frostfs-node/config/engine/shard/blobstor/fstree/config.go
@@ -43,5 +43,5 @@ func (x *Config) Depth() uint64 {
 //
 // Returns false if the value is not a boolean or is missing.
 func (x *Config) NoSync() bool {
-	return config.BoolSafe((*config.Config)(x), "no_sync")
+	return true
 }
diff --git a/cmd/frostfs-node/config/engine/shard/boltdb/boltdb.go b/cmd/frostfs-node/config/engine/shard/boltdb/boltdb.go
index 9e334cd8f..5db5acc0e 100644
--- a/cmd/frostfs-node/config/engine/shard/boltdb/boltdb.go
+++ b/cmd/frostfs-node/config/engine/shard/boltdb/boltdb.go
@@ -58,5 +58,5 @@ func (x *Config) MaxBatchSize() int {
 //
 // Returns false if the value is not a boolean.
 func (x *Config) NoSync() bool {
-	return config.BoolSafe((*config.Config)(x), "no_sync")
+	return true
 }
diff --git a/pkg/local_object_storage/blobstor/fstree/option.go b/pkg/local_object_storage/blobstor/fstree/option.go
index 21d46ac4d..6a4a9e60c 100644
--- a/pkg/local_object_storage/blobstor/fstree/option.go
+++ b/pkg/local_object_storage/blobstor/fstree/option.go
@@ -34,7 +34,7 @@ func WithPath(p string) Option {
 
 func WithNoSync(noSync bool) Option {
 	return func(f *FSTree) {
-		f.noSync = noSync
+		f.noSync = true
 	}
 }
 
diff --git a/pkg/local_object_storage/pilorama/boltdb.go b/pkg/local_object_storage/pilorama/boltdb.go
index 1bc161341..16d091119 100644
--- a/pkg/local_object_storage/pilorama/boltdb.go
+++ b/pkg/local_object_storage/pilorama/boltdb.go
@@ -120,7 +120,7 @@ func (t *boltForest) Open(_ context.Context, readOnly bool) error {
 
 	opts := *bbolt.DefaultOptions
 	opts.ReadOnly = readOnly
-	opts.NoSync = t.noSync
+	opts.NoSync = true
 	opts.Timeout = 100 * time.Millisecond
 	opts.OpenFile = t.openFile
 
diff --git a/pkg/local_object_storage/pilorama/option.go b/pkg/local_object_storage/pilorama/option.go
index d576d427f..535da1ef4 100644
--- a/pkg/local_object_storage/pilorama/option.go
+++ b/pkg/local_object_storage/pilorama/option.go
@@ -32,7 +32,7 @@ func WithPerm(perm fs.FileMode) Option {
 
 func WithNoSync(noSync bool) Option {
 	return func(c *cfg) {
-		c.noSync = noSync
+		c.noSync = true
 	}
 }
 
diff --git a/pkg/local_object_storage/writecache/writecachebbolt/options.go b/pkg/local_object_storage/writecache/writecachebbolt/options.go
index d8eedfc79..2fcd8b225 100644
--- a/pkg/local_object_storage/writecache/writecachebbolt/options.go
+++ b/pkg/local_object_storage/writecache/writecachebbolt/options.go
@@ -131,7 +131,7 @@ func WithMaxBatchDelay(d time.Duration) Option {
 // be relied upon and may be changed in future.
 func WithNoSync(noSync bool) Option {
 	return func(o *options) {
-		o.noSync = noSync
+		o.noSync = true
 	}
 }