diff --git a/lcnode/const.go b/lcnode/const.go
index 0799892a6..c7b31f0ee 100644
--- a/lcnode/const.go
+++ b/lcnode/const.go
@@ -33,6 +33,7 @@ const (
 	configLcNodeTaskCountLimit         = "lcNodeTaskCountLimit"
 
 	configEnableDebugService = "enableDebugService"
+	configDelayDelMinute     = "delayDelMinute"
 )
 
 // Default of configuration value
@@ -52,6 +53,7 @@ const (
 	defaultUnboundedChanInitCapacity = 10000
 	defaultLcNodeTaskCountLimit      = 1
 	maxLcNodeTaskCountLimit          = 20
+	defaultDelayDelMinute            = 1440 // default retention min(1 day) of old eks after migration
 
 	MaxSizePutOnce = int64(1) << 23
 )
@@ -70,4 +72,5 @@ var (
 	maxDirChanNum             = 1000000
 
 	enableDebugService bool
+	delayDelMinute     uint64
 )
diff --git a/lcnode/lc_scanner.go b/lcnode/lc_scanner.go
index 9db0a3caa..ae39d572d 100644
--- a/lcnode/lc_scanner.go
+++ b/lcnode/lc_scanner.go
@@ -396,7 +396,7 @@ func (s *LcScanner) handleFile(dentry *proto.ScanDentry) {
 			log.LogErrorf("migrate err: %v, dentry: %+v, skip it", err, dentry)
 			return
 		}
-		err = s.mw.UpdateExtentKeyAfterMigration(dentry.Inode, proto.OpTypeToStorageType(dentry.Op), nil, dentry.WriteGen, dentry.Path)
+		err = s.mw.UpdateExtentKeyAfterMigration(dentry.Inode, proto.OpTypeToStorageType(dentry.Op), nil, dentry.WriteGen, delayDelMinute, dentry.Path)
 		if err != nil {
 			atomic.AddInt64(&s.currentStat.ErrorSkippedNum, 1)
 			log.LogErrorf("update extent key err: %v, dentry: %+v, skip it", err, dentry)
@@ -419,7 +419,7 @@ func (s *LcScanner) handleFile(dentry *proto.ScanDentry) {
 			log.LogErrorf("migrateToEbs err: %v, dentry: %+v, skip it", err, dentry)
 			return
 		}
-		err = s.mw.UpdateExtentKeyAfterMigration(dentry.Inode, proto.OpTypeToStorageType(dentry.Op), oeks, dentry.WriteGen, dentry.Path)
+		err = s.mw.UpdateExtentKeyAfterMigration(dentry.Inode, proto.OpTypeToStorageType(dentry.Op), oeks, dentry.WriteGen, delayDelMinute, dentry.Path)
 		if err != nil {
 			atomic.AddInt64(&s.currentStat.ErrorSkippedNum, 1)
 			log.LogErrorf("update extent key err: %v, dentry: %+v, skip it", err, dentry)
diff --git a/lcnode/meta.go b/lcnode/meta.go
index 011bc5319..c1c9d0b09 100644
--- a/lcnode/meta.go
+++ b/lcnode/meta.go
@@ -23,7 +23,7 @@ type MetaWrapper interface {
 	BatchInodeGet(inodes []uint64) []*proto.InodeInfo
 	DeleteWithCond_ll(parentID, cond uint64, name string, isDir bool, fullPath string) (inode *proto.InodeInfo, err error)
 	Evict(inode uint64, fullPath string) error
-	UpdateExtentKeyAfterMigration(inode uint64, storageType uint32, extentKeys []proto.ObjExtentKey, writeGen uint64, fullPath string) error
+	UpdateExtentKeyAfterMigration(inode uint64, storageType uint32, extentKeys []proto.ObjExtentKey, writeGen uint64, delayDelMinute uint64, fullPath string) error
 	DeleteMigrationExtentKey(inode uint64, fullPath string) error
 	ReadDirLimit_ll(parentID uint64, from string, limit uint64) ([]proto.Dentry, error)
 	Close() error
diff --git a/lcnode/meta_test.go b/lcnode/meta_test.go
index c6b946197..857712878 100644
--- a/lcnode/meta_test.go
+++ b/lcnode/meta_test.go
@@ -71,7 +71,7 @@ func (*MockMetaWrapper) Evict(inode uint64, fullPath string) error {
 	return nil
 }
 
-func (*MockMetaWrapper) UpdateExtentKeyAfterMigration(inode uint64, storageType uint32, extentKeys []proto.ObjExtentKey, writeGen uint64, fullPath string) error {
+func (*MockMetaWrapper) UpdateExtentKeyAfterMigration(inode uint64, storageType uint32, extentKeys []proto.ObjExtentKey, writeGen uint64, delayDelMinute uint64, fullPath string) error {
 	return nil
 }
 
diff --git a/lcnode/server.go b/lcnode/server.go
index a7480e60d..1a1b5123e 100644
--- a/lcnode/server.go
+++ b/lcnode/server.go
@@ -221,6 +221,21 @@ func (l *LcNode) parseConfig(cfg *config.Config) (err error) {
 	}
 	log.LogInfof("loadConfig: setup config: %v(%v)", configLcNodeTaskCountLimit, lcNodeTaskCountLimit)
 
+	// parse delayDelMinute
+	var delay int64
+	delayStr := cfg.GetString(configDelayDelMinute)
+	if delayStr != "" {
+		if delay, err = strconv.ParseInt(delayStr, 10, 64); err != nil {
+			return fmt.Errorf("%v,err:%v", proto.ErrInvalidCfg, err.Error())
+		}
+	}
+	if delay <= 0 {
+		delayDelMinute = defaultDelayDelMinute
+	} else {
+		delayDelMinute = uint64(delay)
+	}
+	log.LogInfof("loadConfig: setup config: %v(%v)", configDelayDelMinute, delayDelMinute)
+
 	enableDebugService = cfg.GetBool(configEnableDebugService)
 	log.LogInfof("loadConfig: setup config: %v(%v)", configEnableDebugService, enableDebugService)
 
diff --git a/sdk/meta/api.go b/sdk/meta/api.go
index 696028661..8cbb28024 100644
--- a/sdk/meta/api.go
+++ b/sdk/meta/api.go
@@ -2767,12 +2767,12 @@ func (mw *MetaWrapper) RenewalForbiddenMigration(inode uint64) error {
 }
 
 func (mw *MetaWrapper) UpdateExtentKeyAfterMigration(inode uint64, storageType uint32, objExtentKeys []proto.ObjExtentKey,
-	writeGen uint64, fullPath string) error {
+	writeGen uint64, delayDelMinute uint64, fullPath string) error {
 	mp := mw.getPartitionByInode(inode)
 	if mp == nil {
 		return syscall.ENOENT
 	}
-	status, err := mw.updateExtentKeyAfterMigration(mp, inode, storageType, objExtentKeys, writeGen, fullPath)
+	status, err := mw.updateExtentKeyAfterMigration(mp, inode, storageType, objExtentKeys, writeGen, delayDelMinute, fullPath)
 	if err != nil || status != statusOK {
 		log.LogErrorf("UpdateExtentKeyAfterMigration: inode(%v) storageType(%v) extentKeys(%v) writeGen(%v)  err(%v) status(%v)",
 			inode, storageType, objExtentKeys, writeGen, err, status)
diff --git a/sdk/meta/operation.go b/sdk/meta/operation.go
index d09d951bf..718815971 100644
--- a/sdk/meta/operation.go
+++ b/sdk/meta/operation.go
@@ -3019,7 +3019,7 @@ func (mw *MetaWrapper) renewalForbiddenMigration(mp *MetaPartition, inode uint64
 }
 
 func (mw *MetaWrapper) updateExtentKeyAfterMigration(mp *MetaPartition, inode uint64, storageType uint32,
-	extentKeys []proto.ObjExtentKey, writeGen uint64, fullPath string) (status int, err error) {
+	extentKeys []proto.ObjExtentKey, writeGen uint64, delayDelMinute uint64, fullPath string) (status int, err error) {
 	bgTime := stat.BeginStat()
 	defer func() {
 		stat.EndStat("updateExtentKeyAfterMigration", err, bgTime, 1)
@@ -3031,6 +3031,7 @@ func (mw *MetaWrapper) updateExtentKeyAfterMigration(mp *MetaPartition, inode ui
 		NewObjExtentKeys: extentKeys,
 		WriteGen:         writeGen,
 	}
+	req.DelayDeleteMinute = delayDelMinute
 	req.FullPaths = []string{fullPath}
 	packet := proto.NewPacketReqID()
 	packet.Opcode = proto.OpMetaUpdateExtentKeyAfterMigration