output show md raid1 boot, zfs raid1 /, and btrfs raid1 for docker

filesystems.sh

### mounts

[root@digderidoo ~]# mount
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
dev on /dev type devtmpfs (rw,nosuid,relatime,size=16022440k,nr_inodes=4005610,mode=755)
run on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
zroot on / type zfs (rw,relatime,xattr,noacl)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=21,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
tmpfs on /tmp type tmpfs (rw)
mqueue on /dev/mqueue type mqueue (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
/dev/md0 on /boot type ext4 (rw,relatime,data=ordered)
tmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=3205260k,mode=700)
/dev/sda6 on /data/docker type btrfs (rw,noatime,compress=lzo,ssd,discard,space_cache,autodefrag)

### disk space usage
[root@digderidoo ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
zroot           126G  1.5G  124G   2% /
dev              16G     0   16G   0% /dev
run              16G  588K   16G   1% /run
tmpfs            16G     0   16G   0% /dev/shm
tmpfs            16G     0   16G   0% /sys/fs/cgroup
tmpfs            16G     0   16G   0% /tmp
/dev/md0        488M   64M  395M  14% /boot
tmpfs           3.1G     0  3.1G   0% /run/user/0
/dev/sda6       102G   17M  102G   1% /data/docker

### /boot md raid1

[root@digderidoo ~]# mdadm --detail /dev/md0
/dev/md0:
        Version : 1.2
  Creation Time : Sat Nov  1 20:18:39 2014
     Raid Level : raid1
     Array Size : 523712 (511.52 MiB 536.28 MB)
  Used Dev Size : 523712 (511.52 MiB 536.28 MB)
   Raid Devices : 2
  Total Devices : 2
    Persistence : Superblock is persistent

    Update Time : Sat Nov  1 21:17:19 2014
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           Name : digderidoo.home.inatree.org:0  (local to host digderidoo.home.inatree.org)
           UUID : cbb1f9b2:513fe1ad:97d6854a:2708eee0
         Events : 21

    Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       1       8       17        1      active sync   /dev/sdb1
       
### / zpool raid1
[root@digderidoo ~]# zpool list -v
NAME   SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
zroot   127G  1.44G   126G         -     0%     1%  1.00x  ONLINE  -
  mirror   127G  1.44G   126G         -     0%     1%
    sda2      -      -      -         -      -      -
    sdb2      -      -      -         -      -      -

### /data/docker btrfs raid1
[root@digderidoo ~]# btrfs filesystem show /dev/sda6
Label: 'docker_btrfs_raid1'  uuid: 61dbfe05-fc91-4bf3-99fe-c7972490a751
	Total devices 2 FS bytes used 640.00KiB
	devid    1 size 101.97GiB used 2.03GiB path /dev/sda6
	devid    2 size 101.97GiB used 2.01GiB path /dev/sdb6

Btrfs v3.17