Currently set to and Block device in lvdisplay ?

[root@test ~]# lvdisplay /dev/hits/hits1
  --- Logical volume ---
  LV Name                /dev/hits/hits1
  VG Name                hits
  LV UUID                W7uUkN-WAIf-MrY7-u7oE-x9uy-AegG-WYATjI
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                1.00 GiB
  Current LE             256
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0

[root@test ~]#

Most of us would wonder few things with the output of # lvdisplay especially the bottom two lines.
currently set to and Block device.

Block device:

Block Devices refers to the DM (Device Multipath) Associated with the logical volume.

[root@test ~]# dmsetup ls --tree
hits-hits1 (253:0)
 └─ (8:16)

[root@test dev]# ls -l | grep -i "253"

brw-rw----. 1 root disk    253,   0 Jul  4 17:50 dm-0

[root@test dev]#

dm-0 is the device multipath associated with the logical volume hits1.