Users Guide

Table Of Contents
Restore from Flash
On server power-up, BIOS re-initializes the DRAM on the NVDIMM-N. BIOS commands the NVDIMM-N Controller using the
SMBus Management Interface to restore its DRAM contents from Flash. The restore process takes approximately one minute to
complete. This duration is independent of the number of NVDIMM-Ns installed in the server because Restores occur in parallel
across all NVDIMM-Ns. BIOS then exposes the NVDIMM-N to the Server OS as Persistent Memory. Note that Persistent
Memory is distinct from System Memory which is required for normal OS operation. Please refer to the respective OS Sections
for more details on OS support of Persistent Memory.
Figure 4. Restore Operation
NVDIMM-N Overview
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