LVM + RAID

1.apt-get update && apt-get install lvm2
2.dd if=/dev/zero of=/tmp/dysk1.img bs=100M count=1 && dd if=/dev/zero of=/tmp/dysk2.img bs=200M count=1
3.losetup /dev/loop0 /tmp/dysk1.img itp
	pvcreate /dev/loop0
	pvcreate /dev/loop1
4. vgcreate grupaVol /dev/loop0 /dev/loop1
	lvcreate -L 10M -n part1 grupaVol
	lvcreate -L 20M -n part2 grupaVol
5. mkfs.ext4 /dev/mapper/grupaVol-part1 && mkfs.ext4 /dev/mapper/grupaVol-part2
	mkdir /mnt/lvm
	mount /dev/mapper/grupaVol-part1 /mnt/lvm
6. dd if=/dev/zero of=/mnt/lvm/plik bs=8M count=1
7. dd if=/dev/zero of=/tmp/dysk3 bs=10M count=1
	losetup /dev/loop2 /tmp/dysk3.img
	pvcreate /dev/loop2
8. vgextend grupaVol /dev/loop2
	pvmove /dev/loop0 /dev/loop2
	vgreduce grupaVol /dev/loop0 && vgreduce grupaVol /dev/loop1
9. vgreduce grupaVol /dev/loop0 && vgreduce grupaVol /dev/loop1 && vgreduce grupaVol /dev/loop2 && pvremove /dev/loop0...2
10. fdisk /dev/loop0 -> partycja linux raid auto
	mdadm --create /dev/md1 --level=raid1 --raid-devices=2 /dev/loop0 /dev/loop1
11. pvcreate /dev/md1
	vgcreate grupaRaid /dev/md1
12. vgs && vgdisplay
13. lvcreate -L 50M -n grupaLv grupaRaid
14.	mkfs.ext4 /dev/mapper/grupaRaid-grupaLv
	mkdir /mnt/raid
	mount /dev/mapper/grupaRaid-grupaLv /mnt/raid
15. lvs && lvdisplay
16. lvextend -L +10M /dev/mapper/grupaRaid-grupaLv
17. lvreduce -L 20M /dev/mapper/grupaRaid-grupaLv
18. dd if=/dev/zero of=/tmp/dysk3.img bs=100M count=1 && dd if=/dev/zero of=/tmp/dysk4.img bs=200M count=1
	losetup /dev/loop2 /tmp/dysk3.img itp
	mdadm --create /dev/md2 --level=raid1 --raid-devices=2 /dev/loop2 /dev/loop3
	vgextend /dev/mapper/grupaRaid-grupaLv /dev/md2
19. lvcreate -L 30M -n part3 grupaRaid
	lvcreate -L 30M -n part4 grupaRaid
20. vgreduce grupaRaid /dev/loop0 && vgreduce grupaRaid /dev/loop1 && vgreduce grupaRaid /dev/loop2 && pvremove /dev/loop0...3