du只有16T占用，存储空间管理器占用了18.7T
16T .
14T ./video
2.1T ./homes
48G ./@synologydrive
18G ./Plex
5.8G ./@iSCSI
2.3G ./music
1.9G ./movie
1.6G ./@appstore
431M ./@database
383M ./@GuestImage
21M ./@entware
3.4M ./@SynoFinder-log
256K ./@SynologyDriveShareSync
236K ./web
100K ./@eaDir
36K ./@Repository
12K ./@SynoFinder-etc-volume
12K ./@S2S
8.0K ./@SynologyApplicationService
8.0K ./@spool
4.0K ./surveillance
4.0K ./photo
0 ./@tmp
0 ./@璐村惂鐢ㄦ埛_00QSyAV馃惥
16T .
14T ./video
2.1T ./homes
48G ./@synologydrive
18G ./Plex
5.8G ./@iSCSI
2.3G ./music
1.9G ./movie
1.6G ./@appstore
431M ./@database
383M ./@GuestImage
21M ./@entware
3.4M ./@SynoFinder-log
256K ./@SynologyDriveShareSync
236K ./web
100K ./@eaDir
36K ./@Repository
12K ./@SynoFinder-etc-volume
12K ./@S2S
8.0K ./@SynologyApplicationService
8.0K ./@spool
4.0K ./surveillance
4.0K ./photo
0 ./@tmp
0 ./@璐村惂鐢ㄦ埛_00QSyAV馃惥
应该是文件系统的bug，解决不了，文件被占用时自己复制衣服搞走，原来的扇区没有被释放，现在好像找不到办法了
