Logical volume management (LVM) on Linux provides an easy way to create a point in time snapshot of the logical volume (LV) hosting a filesystem. These snapshots freeze the data at that point of time when the snapshot was created even though actual data may keep getting modified on the real logical volume. This allows you to access the data exactly how it was at the point of time when the snapshot was created making way to create point in time backups of the data.
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