How to Create Volume Groups using vgcreate (with examples)

Use Case 1: Create a new volume group using a single device

Code:

vgcreate vg1 /dev/sda1

Motivation: This use case demonstrates how to create a new volume group using a single mass-storage device. Volume groups allow for logical management of multiple physical volumes, making it easier to allocate and manage storage for various purposes.

Explanation:

• vgcreate: The command used to create a volume group.
• vg1: The name of the volume group to be created.
• /dev/sda1: The device to be added to the volume group. This can be a partition or a whole disk.

Example Output:

Volume group "vg1" successfully created.

Use Case 2: Create a new volume group using multiple devices

Code:

vgcreate vg1 /dev/sda1 /dev/sdb1 /dev/sdc1

Motivation: This use case demonstrates how to create a volume group using multiple mass-storage devices. By combining multiple devices into a single volume group, you can effectively pool their storage capacity and utilize it as a single logical unit.

Explanation:

• vgcreate: The command used to create a volume group.
• vg1: The name of the volume group to be created.
• /dev/sda1, /dev/sdb1, /dev/sdc1: The devices to be added to the volume group. Multiple devices can be specified to increase the storage capacity of the volume group.

Example Output:

Volume group "vg1" successfully created.

(Note: The output will also display information about the physical volumes added to the volume group.)

These were two use cases highlighting the creation of volume groups using the vgcreate command. Further use cases will be covered in the continuation of this article.