diff --git a/web/support/kb/ceph/ceph-extend-rocksdb-partition.rst b/web/support/kb/ceph/ceph-extend-rocksdb-partition.rst
index 24fa5f1cc90791e253eeabe9f24b787b66939ec5..daa7c86722c1bdeaa66ad28e8753913c8647a02e 100644
--- a/web/support/kb/ceph/ceph-extend-rocksdb-partition.rst
+++ b/web/support/kb/ceph/ceph-extend-rocksdb-partition.rst
@@ -30,6 +30,8 @@ However, for each OSD here the steps:
     $ systemctl stop ceph-osd@<OSDnumber>
     # check following command really claims to be extending the partition
     $ ceph-bluestore-tool bluefs-bdev-expand --path /var/lib/ceph/osd/ceph-<OSDnumber>
+    # the following command shows detail about the LVM volumes associated to <OSDnumber>
+    $ ceph-bluestore-tool show-label --path /var/lib/ceph/osd/ceph-<OSDnumber>
     $ systemctl restart ceph-osd@<OSDnumber>
 
 - force an OSD compact, to get rid of ``spillover`` message::