Just as an exercise in 'how to'
Created a VM with two drives and installed sme10, ended with a Raid1 by default, system up and running fully yum updated..installed smeservr-shared-folders
Added 4 drives and configured as per wiki and online resources,
Ended with a VM with a 2xHD Raid1 with sme10 OS and a 4xHD Raid6 mounted in /homee-smith/files/shares
fstab edited as wiki and online articles show, issue with emergency mode was solved as described in online article
Not inluding research for issue on boot, all up maybe max 2hrs from install of sme10 to all up and done..issue on boot now resolved so easy peasy
Start here and take time to understand what you are doing
https://wiki.koozali.org/Raidhttps://wiki.koozali.org/AddExtraHardDiskhttps://www.tecmint.com/create-raid-5-in-linux/ (sme10 uses Raid 6 not 5)
http://www.chriscouture.com/centos-7-emergency-mode-on-bootreboot-with-raid-mounted/My fstab
# /etc/fstab
# Created by anaconda on Mon Aug 30 16:33:28 2021
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(
, mount(
and/or blkid(
for more info
#
/dev/mapper/main-root / xfs uquota,gquota 0 0
UUID=35b757aa-2d73-4ff5-beaf-679e7facefc1 /boot xfs defaults 0 0
/dev/mapper/main-swap swap swap defaults 0 0
#/dev/md11 /home/e-smith/files/shares ext4 _netdev 0 0
/dev/md11 /home/e-smith/files/shares ext4 noauto,x-systemd.automount 0 0
or using UUID
#UUID=29dbfbc8-5562-4800-9c35-2733af1c74d2 /home/e-smith/files/shares ext4 _netdev 0 0
UUID=29dbfbc8-5562-4800-9c35-2733af1c74d2 /home/e-smith/files/shares ext4 noauto,x-systemd.automount 0 0
[root@smeraid6 ~]# cat /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4]
md11 : active raid6 sdb1[0] sdc1[1] sdd1[2] sde1[3]
41906176 blocks super 1.2 level 6, 512k chunk, algorithm 2 [4/4] [UUUU]
md1 : active raid1 sda2[0] sdf2[1]
15206400 blocks super 1.2 [2/2] [UU]
bitmap: 1/1 pages [4KB], 65536KB chunk
md0 : active raid1 sda1[0] sdf1[1]
510976 blocks super 1.2 [2/2] [UU]
bitmap: 0/1 pages [0KB], 65536KB chunk
unused devices: <none>
Have fun