mdadm --detail /dev/md0
/dev/md0:
           Version : 1.2
     Creation Time : Sun Apr 19 20:19:05 2020
        Raid Level : raid10
        Array Size : 7813406720 (7.28 TiB 8.00 TB)
     Used Dev Size : 1562681344 (1490.29 GiB 1600.19 GB)
      Raid Devices : 10
     Total Devices : 10
       Persistence : Superblock is persistent

     Intent Bitmap : Internal

       Update Time : Fri May  3 18:49:09 2024
             State : clean 
    Active Devices : 10
   Working Devices : 10
    Failed Devices : 0
     Spare Devices : 0

            Layout : near=2
        Chunk Size : 512K

Consistency Policy : bitmap

              Name : helena.dwd.de:0  (local to host helena.dwd.de)
              UUID : 62ab73f8:8de73506:39ee8c92:5f8a3528
            Events : 1330

    Number   Major   Minor   RaidDevice State
       0     259        1        0      active sync set-A   /dev/nvme0n1
       1     259        0        1      active sync set-B   /dev/nvme2n1
       2     259        3        2      active sync set-A   /dev/nvme1n1
       3     259        5        3      active sync set-B   /dev/nvme3n1
       4     259        2        4      active sync set-A   /dev/nvme4n1
       5     259        4        5      active sync set-B   /dev/nvme5n1
       6     259        7        6      active sync set-A   /dev/nvme6n1
       7     259        6        7      active sync set-B   /dev/nvme7n1
       8     259        8        8      active sync set-A   /dev/nvme8n1
       9     259        9        9      active sync set-B   /dev/nvme9n1