cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 nvme0n1p1[0](F) nvme1n1p1[1]
      33521664 blocks super 1.2 [2/1] [_U]

md2 : active raid1 nvme1n1p3[1] nvme0n1p3[0](F)
      965992768 blocks super 1.2 [2/1] [_U]
      bitmap: 8/8 pages [32KB], 65536KB chunk

md1 : active raid1 nvme1n1p2[1] nvme0n1p2[0](F)
      523712 blocks super 1.2 [2/1] [_U]