diff --git a/cmd/backup-manager/app/backup/manager.go b/cmd/backup-manager/app/backup/manager.go
index 648727b29c8..8705918a3c7 100644
--- a/cmd/backup-manager/app/backup/manager.go
+++ b/cmd/backup-manager/app/backup/manager.go
@@ -331,14 +331,28 @@ func (bm *Manager) performBackup(ctx context.Context, backup *v1alpha1.Backup, d
 	}
 
 	if backupErr != nil {
+		// Calculate the backup size for failed backup job
+		backupSize, err := util.CalcVolSnapBackupSize(ctx, backup.Spec.StorageProvider)
+
+		if err != nil {
+			klog.Warningf("Failed to calc volume snapshot backup size %d bytes, %v", backupSize, err)
+			errs = append(errs, err)
+		}
+
+		backupSizeReadable := humanize.Bytes(uint64(backupSize))
+
 		errs = append(errs, backupErr)
 		klog.Errorf("backup cluster %s data failed, err: %s", bm, backupErr)
+
 		uerr := bm.StatusUpdater.Update(backup, &v1alpha1.BackupCondition{
 			Type:    v1alpha1.BackupFailed,
 			Status:  corev1.ConditionTrue,
 			Reason:  "BackupDataToRemoteFailed",
 			Message: backupErr.Error(),
-		}, nil)
+		}, &controller.BackupUpdateStatus{
+			BackupSize:         &backupSize,
+			BackupSizeReadable: &backupSizeReadable,
+		})
 		errs = append(errs, uerr)
 		return errorutils.NewAggregate(errs)
 	}
diff --git a/cmd/backup-manager/app/util/backup_size.go b/cmd/backup-manager/app/util/backup_size.go
index 35e60249dcb..281f106df1a 100644
--- a/cmd/backup-manager/app/util/backup_size.go
+++ b/cmd/backup-manager/app/util/backup_size.go
@@ -214,7 +214,7 @@ func calcBackupSize(ctx context.Context, volumes map[string]string) (uint64, err
 		snapshotId := id
 		// sort snapshots by timestamp
 		workerPool.ApplyOnErrorGroup(eg, func() error {
-			snapSize, apiReq, err := initialSnapshotSize(snapshotId)
+			snapSize, apiReq, err := calculateSnapshotSize(snapshotId)
 			if err != nil {
 				return err
 			}
@@ -234,9 +234,8 @@ func calcBackupSize(ctx context.Context, volumes map[string]string) (uint64, err
 	return backupSize, nil
 }
 
-// initialSnapshotSize calculate size of an initial snapshot in bytes by listing its blocks.
-// initial snapshot always a ful backup of volume
-func initialSnapshotSize(snapshotId string) (uint64, uint64, error) {
+// calculateSnapshotSize calculate size of an snapshot in bytes by listing its blocks.
+func calculateSnapshotSize(snapshotId string) (uint64, uint64, error) {
 	var snapshotSize uint64
 	var numApiReq uint64
 	ebsSession, err := util.NewEBSSession(util.CloudAPIConcurrency)
diff --git a/pkg/backup/util/remote.go b/pkg/backup/util/remote.go
index c0551d7e32c..6125375d32d 100644
--- a/pkg/backup/util/remote.go
+++ b/pkg/backup/util/remote.go
@@ -215,7 +215,7 @@ type BatchDeleteObjectsResult struct {
 	Errors  []ObjectError
 }
 
-// BatchDeleteObjects delete mutli objects
+// BatchDeleteObjects delete multi objects
 //
 // Depending on storage type, it use function 'BatchDeleteObjectsOfS3' or 'BatchDeleteObjectsConcurrently'
 func (b *StorageBackend) BatchDeleteObjects(ctx context.Context, objs []*blob.ListObject, opt v1alpha1.BatchDeleteOption) *BatchDeleteObjectsResult {