Logical Volume Management

Question 1

What steps are needed to create a usable logical volume?

Answer 1

1. Prepare the physical device(s); create an LVM partition
   ]# fdisk /dev/sdb
   ]# partprobe /dev/sdb
2. Create a physical volume
   ]# pvcreate /dev/sdb1 /dev/sdb2
3. Create a volume group
   ]# vgcreate vg-alpha /dev/sdb1 /dev/sdb2
4. Create a logical volume
   ]# lvcreate -n Hercules -L 2G vg-alpha
5. Add the file system
   ]# mkfs.xfs /dev/vg-alpha/Hercules
   ]# mkdir /mnt/Hercules
   ]# echo (mount directives)&raquo_space; /etc/fstab
   ]# mount -a

Question 2

What command is used to create a physical volume for LVM?

Answer 2

■ pvcreate

Question 3

What command is used to create a volume group for LVM?

Answer 3

■ vgcreate

Question 4

What command is used to create a logical volume for LVM?

Answer 4

■ lvcreate

Question 5

What is the command theme for LVM?

Answer 5

■ create/remove/display
■ pvcreate/pvremove/pvdisplay
■ vgcreate/vgremove/vgdisplay
■ lvcreate/lvremove/lvdisplay