Join Scott Simpson for an in-depth discussion in this video Understanding LVM, part of Linux Foundation Cert Prep: Storage Management (Ubuntu).
- LVM, or logical volume management,…is a system for disc management that gives us…some benefits over traditional partition management.…It uses regular partitions on disks,…but on top of the partitions, it creates…a management system of volumes or rather,…physical volumes, volume groups and logical volumes.…Those allow us to configure storage…in a more flexible way and we can enjoy…some benefits like the ability to fairly easily…manage redundant storage and to resize volumes…as needs change.…
With a traditional partitioning scheme…we could create as many partitions…as we'd like on one disk but the total available…space would be limited by the size of the individual disk,…whether it's one partition or more.…If we needed more space we'd need to add…another disk with another file system…and figure out which data to put where.…With LVM, each disk can host one or more…physical volumes, or PVs, in a partition…which you can kind of think of like virtual drives.…Usually we'll have one physical volume per actual disk.…
Join instructor Scott Simpson, as he shows how to manage and optimize file storage on Ubuntu Linux. First, learn how to create, modify, and mount partitions and filesystems, and manage swap space. Scott then combines these basics into more sophisticated solutions using volume management, and shows how to secure Linux storage and configure disk quotas and backup policies.
- Creating and modifying partitions
- Creating, modifying, and mounting filesystems
- Mounting encrypted partitions
- Creating redundant storage with RAID
- Working with physical volumes, volume groups, and logical volumes
- Securing filesystems with ACLs
- Backing up data