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Flexible Storage Management with LVM
Managing local storage can be done more flexibly than in Chapter 12, Managing Local Storage and Filesystems, by using Logical Volume Manager (LVM). LVM allows you to assign more than one disk to the same logical volume (the equivalent in LVM to a partition), replicate data across different disks, and make snapshots of a volume.
In this chapter, we will review the basic usage of LVM and the main objects that are used to manage storage. We will learn how to prepare disks to be used with LVM and then aggregate them into a pool, thereby not only increasing the available space but also enabling you to use it consistently. We will also learn how to distribute that aggregated disk space into partition-like chunks ...
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