diff --git a/kernel/conf/user.go b/kernel/conf/user.go
index ddd02cc45..81660b27f 100644
--- a/kernel/conf/user.go
+++ b/kernel/conf/user.go
@@ -30,6 +30,7 @@ type User struct {
 	UserToken                    string       `json:"userToken"`
 	UserTokenExpireTime          string       `json:"userTokenExpireTime"`
 	UserSiYuanRepoSize           float64      `json:"userSiYuanRepoSize"`
+	UserSiYuanAssetSize          float64      `json:"userSiYuanAssetSize"`
 	UserTrafficUpload            float64      `json:"userTrafficUpload"`
 	UserTrafficDownload          float64      `json:"userTrafficDownload"`
 	UserTrafficTime              float64      `json:"userTrafficTime"`
diff --git a/kernel/go.mod b/kernel/go.mod
index c5b440d0b..1b21eab21 100644
--- a/kernel/go.mod
+++ b/kernel/go.mod
@@ -40,7 +40,7 @@ require (
 	github.com/qiniu/go-sdk/v7 v7.13.0
 	github.com/radovskyb/watcher v1.0.7
 	github.com/sabhiram/go-gitignore v0.0.0-20210923224102-525f6e181f06
-	github.com/siyuan-note/dejavu v0.0.0-20220702123733-b829773aeffe
+	github.com/siyuan-note/dejavu v0.0.0-20220703013235-b4ad745e0bd5
 	github.com/siyuan-note/encryption v0.0.0-20220612074546-f1dd94fe8676
 	github.com/siyuan-note/eventbus v0.0.0-20220624162334-ca7c06dc771f
 	github.com/siyuan-note/filelock v0.0.0-20220616063212-74cfba0754ee
diff --git a/kernel/go.sum b/kernel/go.sum
index 494c62ae1..ef80b0ab4 100644
--- a/kernel/go.sum
+++ b/kernel/go.sum
@@ -421,8 +421,8 @@ github.com/shurcooL/httpfs v0.0.0-20190707220628-8d4bc4ba7749/go.mod h1:ZY1cvUeJ
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/shurcooL/vfsgen v0.0.0-20200824052919-0d455de96546/go.mod h1:TrYk7fJVaAttu97ZZKrO9UbRa8izdowaMIZcxYMbVaw=
 github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
-github.com/siyuan-note/dejavu v0.0.0-20220702123733-b829773aeffe h1:/awuEhSKXTQXxBB1+0YYUtqVya6RHSO6DBVRf9uTlr4=
-github.com/siyuan-note/dejavu v0.0.0-20220702123733-b829773aeffe/go.mod h1:0t+TpAdsrrv+6LkhDlJY2Gl92CQexgp8KWOBp5Ah9kU=
+github.com/siyuan-note/dejavu v0.0.0-20220703013235-b4ad745e0bd5 h1:k1Tx3CR/FWxzyMDaIV/nyLwe1E4DPy3ZZvFuj+wdSRM=
+github.com/siyuan-note/dejavu v0.0.0-20220703013235-b4ad745e0bd5/go.mod h1:0t+TpAdsrrv+6LkhDlJY2Gl92CQexgp8KWOBp5Ah9kU=
 github.com/siyuan-note/encryption v0.0.0-20220612074546-f1dd94fe8676 h1:QB9TjJQFhXhZ6dAtPpY02DlzHAQm1C+WqZq6OadG8mI=
 github.com/siyuan-note/encryption v0.0.0-20220612074546-f1dd94fe8676/go.mod h1:H8fyqqAbp9XreANjeSbc72zEdFfKTXYN34tc1TjZwtw=
 github.com/siyuan-note/eventbus v0.0.0-20220624162334-ca7c06dc771f h1:JMobMNZ7AqaKKyEK+WeWFhix/2TDQXgPZDajU00IybU=
diff --git a/kernel/model/repository.go b/kernel/model/repository.go
index 97ea40a7b..661ff9b22 100644
--- a/kernel/model/repository.go
+++ b/kernel/model/repository.go
@@ -311,7 +311,7 @@ func syncRepo(byHand bool) {
 		Dir:       Conf.Sync.CloudName,
 		UserID:    Conf.User.UserId,
 		Token:     Conf.User.UserToken,
-		LimitSize: int64(Conf.User.UserSiYuanRepoSize),
+		LimitSize: int64(Conf.User.UserSiYuanRepoSize - Conf.User.UserSiYuanAssetSize),
 		ProxyURL:  Conf.System.NetworkProxy.String(),
 		Server:    util.AliyunServer,
 	}
@@ -322,6 +322,9 @@ func syncRepo(byHand bool) {
 	if nil != err {
 		util.LogErrorf("sync data repo failed: %s", err)
 		msg := "Sync data repo failed: " + err.Error()
+		if errors.Is(err, dejavu.ErrSyncCloudStorageSizeExceeded) {
+			msg = fmt.Sprintf(Conf.Language(43), byteCountSI(int64(Conf.User.UserSiYuanRepoSize)))
+		}
 		util.PushStatusBar(msg)
 		util.PushErrMsg(msg, 0)
 		return
diff --git a/kernel/model/sync.go b/kernel/model/sync.go
index 6e63d1261..800b826d4 100644
--- a/kernel/model/sync.go
+++ b/kernel/model/sync.go
@@ -135,8 +135,8 @@ func SyncData(boot, exit, byHand bool) {
 	indexRepoBeforeCloudSync()
 
 	//同步数据仓库 https://github.com/siyuan-note/siyuan/issues/5142
-	//syncRepo(byHand)
-	//return // TODO: 测试
+	syncRepo(byHand)
+	return // TODO: 测试
 
 	WaitForWritingFiles()
 	writingDataLock.Lock()