Manage Logical Volumes With LVM

Oracle Linux installations, by default, include Logical Volume Manager (LVM).

LVM is a storage management solution that enables administrators to combine any number of physical disk or partitions into a single file system or multiple file systems. The file system layouts are flexible, and can be used to resize allocated space. For example, administrators can choose to shrink a volume when space is no longer needed or grow a volume when more space is needed. Finally, administrators can mount a file system created on top of an LVM almost anywhere except for at /boot.

Important:

For systems running AMD, Intel, or ARM architecture, the boot loader is unable to read LVM volumes. Therefore, the /boot partition, which contains the bootloader software to load the Linux kernel, should always remain as a standard disk partition and not become part of a LVM group.

For information on how to use the Cockpit web console to configure storage volumes managed by LVM, see these topics:

• Create a Volume Group
• Create a Logical Volume
• Create a Thin Logical Volume
• Format and Mount a Logical Volume
• Resize Logical Volumes
• Change Volume Group Properties

For information on how to manage LVM tasks from a command line, see Configure Logical Volumes on Oracle Linux or Working With Logical Volume Manager in Oracle Linux 8: Managing Storage Devices or Oracle Linux 9: Managing Storage Devices.