Logical Volume Manager - LVM: Partitions, Slices and Frustration

"In addition to getting around maximum parition size, LVM is useful for creating areas of storage that can easily be resized. LVs can be grown or reduced. If you grow an LV, you can later grow the underlying filesystem to fill it. If you want to reduce an LV size, you must first shrink the filesystem and then you can reduce the LV. Just make sure to shrink the filesystem by a little bit more than you will shrink the LV. After all, you can fill the gap by expanding the filesystem to fill that later."

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