What Is Rootvg in Linux?

rootvg is, as the name suggests, the volume group ( vg ) that contains / ( root ) and any other logical volumes you created during installation — it’s basically the default AIX volume group. Volume Groups ( VG s) are an AIX thing — they’re basically logical disks (comprised of one or more Physical Volumes ( PV s).

How do I add space to Rootvg?

Allocating more disk space to rootvg

To increase the disk allocation, you can do one or more of the following: Allocate a new physical volume to rootvg using extendvg . Increase an existing rootvg physical volume. Mirror, migrate, or restore to a different, larger disk.

How do I use LVM in Linux?

5.1. Creating an LVM Logical Volume on Three Disks

1. To use disks in a volume group, label them as LVM physical volumes with the pvcreate command. …
2. Create the a volume group that consists of the LVM physical volumes you have created. …
3. Create the logical volume from the volume group you have created.