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In RHCSA Exam you can expect atleast 2 questions out from this topic
Create a LV named LV1 of size 8GB
lsblk
pvcreate /dev/nvme0n3
pvcreate /dev/nvme0n4
pvcreate /dev/nvme0n5
pvs #list all the physical volumes
vgcreate VG1 /dev/nvme0n3 /dev/nvme0n4
vgs
#create volume group with silghtly more storage than required
lvcreate -L 8Gb -n LV1 VG1
lvs
vim /etc/fstab
/dev/VG1/LV1 /lv xfs defaults 0 0
mkdir lv
mkdfs.xfs /dev/VG1/LV1
mount -a
Create a LV with extent
vgdisplay
lvremove /dev/VG1/LV1
vim /etc/fstab #comment out the line
unmount /lv
lvchange -an /dev/VG1/LV1
lvremove /dev/VG1/LV1
lvs
vgremove VG1
vgs
vgcreate -s 8M VG1 /dev/nvme0n3
vgdisplay
lvcreate -l 10 -n LV2 /dev/VG1
- PE size is 4.00 MiB
Resize LVM
Extend the LV, LV1 by 2GB
vgs
lvs
lvextend -r -L +2Gb /dev/VG1/LV1
- to extend you need to have some space in volume group
Transclude of rhcsa-practice-questions#question-97-lvm-important
When you have free space in volume group
When you don’t have enough space in volume group
vgextend VG1 /dev/nvme0n5- we have to add a physical volume to the volume group to extend the space first
