~ # mdadm -Q --detail /dev/md2         [R0 J0 L:0.01 0.06 0.07 U:1+11:03 pts/6 13107H]
/dev/md2:
           Version : 1.2
     Creation Time : Sat Apr  1 20:30:05 2017
        Raid Level : raid1
        Array Size : 2871042048 (2738.04 GiB 2939.95 GB)
     Used Dev Size : 2871042048 (2738.04 GiB 2939.95 GB)
      Raid Devices : 2
     Total Devices : 2
       Persistence : Superblock is persistent

     Intent Bitmap : Internal

       Update Time : Fri Aug 14 11:20:12 2020
             State : clean 
    Active Devices : 2
   Working Devices : 2
    Failed Devices : 0
     Spare Devices : 0

Consistency Policy : bitmap

              Name : corvina:2  (local to host corvina)
              UUID : xxxxxxxxxxxxxxxxxxxxxxxxxxxx
            Events : 65950

    Number   Major   Minor   RaidDevice State
       3       8       20        0      active sync   /dev/sdb4
       2       8        4        1      active sync   /dev/sda4