185 sudo yum install lvm2
186 sudo yum install mdadm
190 sudo mdadm --create /dev/md0 --raid-devices=3 --level=5 /dev/sdg /dev/sdf /dev/sde
191 sudo mdadm --create /dev/md1 --raid-devices=3 --level=5 /dev/sdd /dev/sdc /dev/sdb
194 watch 'cat /proc/mdstat'
195 sudo init 6
196 cat /proc/mdstat
[user@centOS74-30-161 ~]$ cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md0 : active raid5 sdg[0] sdf[1] sde[3]
67043328 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
md1 : active raid5 sdd[0] sdc[1] sdb[3]
67043328 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
198 sudo pvcreate /dev/md0
199 sudo pvcreate /dev/md1
200 sudo pvs
[user@centOS74-30-161 ~]$ sudo pvs
PV VG Fmt Attr PSize PFree
/dev/md0 storage lvm2 a-- 63,93g 35,93g
/dev/md1 storage lvm2 a-- 63,93g 63,93g
201 sudo vgcreate storage /dev/md0 /dev/md1
202 sudo lvcreate --size=20G --name=media storage
203 sudo lvcreate --size=5G --name=docs storage
204 sudo lvcreate --size=3G --name=balie storage
205 sudo lvs
[user@centOS74-30-161 ~]$ sudo lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
balie storage -wi-ao---- 3,00g
docs storage -wi-ao---- 5,00g
media storage -wi-ao---- 20,00g
206 sudo mkfs.ext4 /dev/storage/media
207 sudo mkfs.xfs /dev/storage/docs
208 sudo mkfs.xfs /dev/storage/balie
209 sudo lsblk -f
[user@centOS74-30-161 ~]$ sudo lsblk -o NAME,FSTYPE,SIZE
NAME FSTYPE SIZE
sda 16G
├─sda1 xfs 1G
├─sda2 swap 1G
└─sda3 xfs 14G
sdb linux_raid_member 32G
└─md1 LVM2_member 64G
sdc linux_raid_member 32G
└─md1 LVM2_member 64G
sdd linux_raid_member 32G
└─md1 LVM2_member 64G
sde linux_raid_member 32G
└─md0 LVM2_member 64G
├─storage-media ext4 20G
├─storage-docs xfs 5G
└─storage-balie xfs 3G
sdf linux_raid_member 32G
└─md0 LVM2_member 64G
├─storage-media ext4 20G
├─storage-docs xfs 5G
└─storage-balie xfs 3G
sdg linux_raid_member 32G
└─md0 LVM2_member 64G
├─storage-media ext4 20G
├─storage-docs xfs 5G
└─storage-balie xfs 3G
sr0 1024M211 sudo mkdir -p /node/storage/media
212 sudo mkdir -p /node/storage/docs
213 sudo mkdir -p /node/storage/balie
216 sudo vi /etc/fstab
# /etc/fstab
# Created by anaconda on Fri Dec 15 12:13:50 2017
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=a5ea04cf-a6f3-4d1e-8b56-c90904abff30 / xfs defaults 0 0
UUID=0d80c291-4c12-4449-9798-9f638cfb3c19 /boot xfs defaults 0 0
UUID=a423574d-4fe0-4c98-9639-dd5ead622a57 swap swap defaults 0 0
#storage-media ext4 6b704437-9548-4447-9a3b-db707513cb88
UUID=6b704437-9548-4447-9a3b-db707513cb88 /node/storage/media ext4 defaults 0 0
#storage-docs xfs 2a3fcfcc-a4e9-451f-b2b8-ef9b3a9189b5
UUID=2a3fcfcc-a4e9-451f-b2b8-ef9b3a9189b5 /node/storage/docs xfs defaults 0 0
#storage-balie xfs d6ea0bcf-5967-4bef-961f-123a1a20ce99
UUID=d6ea0bcf-5967-4bef-961f-123a1a20ce99 /node/storage/balie xfs defaults 0 0217 sudo mount -av
218 df -h
[user@centOS74-30-161 ~]$ df -h | grep -v tmp
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 14G 973M 14G 7% /
/dev/sda1 1014M 119M 896M 12% /boot
/dev/mapper/storage-media 20G 45M 19G 1% /node/storage/media
/dev/mapper/storage-docs 5,0G 33M 5,0G 1% /node/storage/docs
/dev/mapper/storage-balie 3,0G 33M 3,0G 2% /node/storage/balie