1. We prepared disk, we need mark to PV
[root@bogon ~]# pvcreate /dev/sdb{1,2,3}
Physical volume "/dev/sdb1" successfully created.
Physical volume "/dev/sdb2" successfully created.
Physical volume "/dev/sdb3" successfully created.
We can see the PV has already done
[root@bogon ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda2 centos lvm2 a-- <19.00g 0 /dev/sdb1 lvm2 --- 100.00m 100.00m /dev/sdb2 lvm2 --- 100.00m 100.00m /dev/sdb3 lvm2 --- 100.00m 100.00m
2. Make VG (which we will start with two production VG)
[root@bogon ~]# vgcreate vg0 /dev/sdb{1,2}
Volume group "vg0" successfully created
Check out our VG, vg0 size of 192M (VG will occupy part of the space created)
[root@bogon ~]# vgs VG #PV #LV #SN Attr VSize VFree centos 1 2 0 wz--n- <19.00g 0 vg0 2 0 0 wz--n- 192.00m 192.00m
3. Make LV, I gave the space lv050M
[root@bogon ~]# lvcreate -L 50M -n /dev/vg0/lv0 vg0 Rounding up size to full physical extent 52.00 MiB Logical volume "lv0" created.
View lv0
[root@bogon ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert root centos -wi-ao---- <17.00g swap centos -wi-ao---- 2.00g lv0 vg0 -wi-a----- 52.00m
4. Create a file system, where I chose xfs format, and mount to see
[root@bogon ~]# mkfs.xfs /dev/vg0/lv0
[root@bogon ~]# mount /dev/vg0/lv0 /mnt/lv0/
[bogon the root @ ~] DF # - Th file system type has been used with the available capacity % mount point / dev / Mapper / CentOS the root-XFS. 17G . 4 .5 g 13G 27 % / devtmpfs devtmpfs 470M 0 470M 0 % / dev tmpfs 487m tmpfs 0 487m 0 % / dev / SHM tmpfs tmpfs 487m 8.3 M 479M 2 % / RUN tmpfs tmpfs 487m 0 487m 0 % / SYS / FS / a cgroup /dev/sda1 xfs 1014M 166M 849M 17% /boot tmpfs tmpfs 98M 12K 98M 1% /run/user/42 tmpfs tmpfs 98M 0 98M 0% /run/user/0 /dev/mapper/vg0-lv0 xfs 49M 2.8M 46M 6% /mnt/lv0
Here we are even built the lvm