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Everything about Device mapper

Software framework of Linux kernel

The device mapper is a framework provided by the Linux kernel for mapping physical block devices onto higher-level virtual block devices. It forms the foundation of the logical volume manager (LVM), software RAIDs and dm-crypt disk encryption, and offers additional features such as file system snapshots. Wikipedia →

đź§­ Start here: a 6-step reading path

  1. Read the overview: Device mapperA 5-minute orientation
  2. Read the landmark paper: PD-DM: An efficient locality-preserving block device mapper with plausible deniabilityCited 11 times
  3. Go sideways: Dm-cryptA closely related topic
  4. Go sideways: Linux Unified Key SetupA closely related topic

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