Hi,cephers I try to two expand test in bluestore. First test is expands db lv which osd have separate block and db and wal, after runs ceph-bluestore-tool buefs-bdev-expand --path XX, it works well. perf dump shows the correct db size. Second test is expands block lv which osd do not have separate db and wal. when I start osd after expand, osd df show the correct size but the usage size increase so much. before:(get data from promethus history , maybe it is not accurate) 444 ssd 1.00000 1.00000 50GiB 43.16GiB 5.36GiB 86.32 1.20 195 after: 444 ssd 1.00000 1.00000 120GiB 115GiB 5.36GiB 95.53 1.20 205 I try to run expand command, but it failed,logs in https://drive.google.com/file/d/1s6A9SylQvIzL1bZQtZckthnm7O7VeOwJ/view?usp=sharing _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com