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Memory Mode

In this mode, PMEMs act as volatile system memory, while DRAM DIMMs act as cache. Ensure that the ratio of DRAM DIMM capacity to PMEM capacity is between 1:4 and 1:16.

With one processor​

Table 1. Memory Mode with one processor

  • D: DRAM DIMMs

  • P: Persistent Memory Module (PMEM)

ConfigurationCPU 1
12345678910111213141516
4 PMEMs and 4 DIMMsPDPDDPDP
4 PMEMs and 8 DIMMsD DPD DPPD DPD D
8 PMEMs and 8 DIMMsDPDPDPDPPDPDPDPD

With two processors​

Table 2. Memory Mode with two processors

  • D: DRAM DIMMs

  • P: Persistent Memory Module (PMEM)

ConfigurationCPU 1
12345678910111213141516
8 PMEMs and 8 DIMMsPDPDDPDP
8 PMEMs and 16 DIMMsD DPD DPPD DPD D
16 PMEMs and 16 DIMMsDPDPDPDPPDPDPDPD
ConfigurationCPU 2
17181920212223242526272829303132
8 PMEMs and 8 DIMMsPDPD DPDP
8 PMEMs and 16 DIMMsD DPD DPPD DPD D
16 PMEMs and 16 DIMMsDPDPDPDPPDPDPDPD