➜  ~ mdadm --detail /dev/md0
/dev/md0:
           Version : 1.2
     Creation Time : Sat Feb 17 17:56:01 2024
        Raid Level : raid5
        Array Size : 8790402048 (8.19 TiB 9.00 TB)
     Used Dev Size : 2930134016 (2.73 TiB 3.00 TB)
      Raid Devices : 4
     Total Devices : 4
       Persistence : Superblock is persistent

     Intent Bitmap : Internal

       Update Time : Thu Oct  3 14:52:17 2024
             State : clean
    Active Devices : 4
   Working Devices : 4
    Failed Devices : 0
     Spare Devices : 0

            Layout : left-symmetric
        Chunk Size : 512K

Consistency Policy : bitmap

              Name : openmediavault:0  (local to host openmediavault)
              UUID : 44c15fb7:0f9ba2be:539ef2c0:93a65dca
            Events : 19957

    Number   Major   Minor   RaidDevice State
       0       8       16        0      active sync   /dev/sdb
       1       8        0        1      active sync   /dev/sda
       4       8       32        2      active sync   /dev/sdc
       3       8       48        3      active sync   /dev/sdd