Red Hat Summit18.2. NVDIMM interleaving and regions
Non-Volatile Dual In-line Memory Modules (NVDIMM) devices support grouping into interleaved regions. NVDIMM devices can be grouped into interleave sets in the same way as regular dynamic RAM (DRAM).
An interleave set is similar to a RAID 0 level (stripe) configuration across multiple DIMMs. An Interleave set is also called a region.
Interleaving has the following advantages:
- NVDIMM devices benefit from increased performance when they are configured into interleave sets.
- Interleaving can combine multiple smaller NVDIMM devices into a larger logical device.
NVDIMM interleave sets are configured in the system BIOS or UEFI firmware. Red Hat Enterprise Linux creates one region device for each interleave set.
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