NDCTL User Guide
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  • NDCTL User Guide
  • Installing NDCTL
    • Installing NDCTL Packages on Linux
    • Installing NDCTL from Source on Linux
  • Quick Start
  • Concepts
    • NVDIMM Devices
    • PMEM and BLK Modes
    • Regions
      • Regions, Atomic Sectors, and DAX
    • Label Storage Area (LSA)
    • Namespaces
  • Managing NVDIMMs
  • Managing Regions
  • Managing Label Storage Areas (LSA)
  • Managing Namespaces
  • Managing NVDIMM Security
  • NDCTL Man Pages
  • Troubleshooting
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  1. Concepts

Regions

PreviousPMEM and BLK ModesNextRegions, Atomic Sectors, and DAX

Last updated 5 years ago

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A generic REGION device is registered for each PMEM range or BLK-aperture set. LIBNVDIMM provides a built-in driver for these REGION devices. This driver is responsible for reconciling the aliased DPA mappings across all regions, parsing the LABEL, if present, and then emitting NAMESPACE devices with the resolved/exclusive DPA-boundaries for the nd_pmem or nd_blk device driver to consume.

Refer to for more information.

Managing Regions