Basic Logical Volume Management

Question 1

What are Logical Volumes (LVs)?

Answer 1

Customizable storage areas within Volume Groups (VGs)

Question 2

Name key commands for LV management.

Answer 2

lvcreate, lvdisplay, lvs

Question 3

What does lvcreate do?

Answer 3

Creates a logical volume from an existing volume group

Question 4

Syntax for lvcreate?

Answer 4

lvcreate –name <logical_volume_name> --size <size> <volume_group_name></volume_group_name></size></logical_volume_name>

Question 5

Example of lvcreate?

Answer 5

lvcreate –name lv_data –size 20G vg_projects

Question 6

Purpose of lvcreate?

Answer 6

Allocates and reserves space for specific storage tasks

Question 7

What does lvdisplay do?

Answer 7

Provides detailed information about a specific logical volume

Question 8

Syntax for lvdisplay?

Answer 8

lvdisplay <logical_volume_path></logical_volume_path>

Question 9

Example of lvdisplay?

Answer 9

lvdisplay /dev/vg_projects/lv_data

Question 10

Purpose of lvdisplay?

Answer 10

Confirms properties and status of a logical volume

Question 11

What does lvs do?

Answer 11

Displays a summary of all logical volumes in the system

Question 12

Syntax for lvs?

Answer 12

lvs

Question 13

Key columns in lvs output?

Answer 13

LV (Logical Volume name), VG (Volume Group name), Attr (attributes), Lsize (Logical volume size)

Question 14

Purpose of lvs?

Answer 14

Provides a high-level view of logical volumes and their usage

Question 15

What is the VG column in the lvs output?

Answer 15

Volume Group name

Question 16

What is the LV column in the lvs output?

Answer 16

Logical Volume name

Question 17

What is the Attr column in the lvs output?

Answer 17

Volume attributes

			■ w: Writable

			■ i: Inherited permissions

                            ■ a: Active

Question 18

What is the Lsize column in the lvs output?

Answer 18

Logical volume size