md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
md: md0 stopped.
md: bind<sdg1>
md: bind<sda1>
md: raid1 personality registered for level 1
raid1: raid set md0 active with 2 out of 2 mirrors
md: md1 stopped.
md: bind<sdh1>
md: bind<sdb1>
raid1: raid set md1 active with 2 out of 2 mirrors
md: md2 stopped.
md: bind<sdi1>
md: bind<sdc1>
raid1: raid set md2 active with 2 out of 2 mirrors
md: md3 stopped.
md: bind<sdj1>
md: bind<sdd1>
raid1: raid set md3 active with 2 out of 2 mirrors
md: md4 stopped.
md: bind<sdk1>
md: bind<sde1>
raid1: raid set md4 active with 2 out of 2 mirrors
md: md5 stopped.
md: bind<sdl1>
md: bind<sdf1>
raid1: raid set md5 active with 2 out of 2 mirrors




===============================================
disko:~# cat /proc/mdstat 
Personalities : [raid1] 
md5 : active raid1 sdf1[0] sdl1[1]
      390612288 blocks [2/2] [UU]
      
md4 : active raid1 sde1[0] sdk1[1]
      390612288 blocks [2/2] [UU]
      
md3 : active raid1 sdd1[0] sdj1[1]
      390612288 blocks [2/2] [UU]
      
md2 : active raid1 sdc1[0] sdi1[1]
      390612288 blocks [2/2] [UU]
      
md1 : active raid1 sdb1[0] sdh1[1]
      390612288 blocks [2/2] [UU]
      
md0 : active raid1 sda1[0] sdg1[1]
      390612288 blocks [2/2] [UU]
      
unused devices: <none>

=========================================
what it hasn't run yet is this striping part:

mdadm --create \
 /dev/md6 \
 --level=0 \
 --raid-devices=6 \
 --chunk=64 \
 /dev/md0 /dev/md1 /dev/md2 /dev/md3 /dev/md4 /dev/md5