App Direct Mode

In this mode, DCPMMs act as independent and persistent memory resources directly accessible by specific applications, and DRAM DIMMs act as system memory.

Note

Before installing DCPMM, refer to Memory configuration and Configure DC Persistent Memory Module (DCPMM) for the requirements.

App Direct Mode with one processor

Note

When adding one or more DCPMMs and DIMMs during a memory upgrade, you might need to move other DIMMs that are already installed to new locations.

Table 1. App Direct Mode with one processor.
D: All supported DDR4 DIMM except 8GB 1Rx8 RDIMM P: Only Data Center Persistent Memory Module (DCPMM) can be installed on the corresponding DIMM slots.
Configuration	Processor 1
Configuration	12	11	10	9	8	7	6	5	4	3	2	1
1 DCPMM and 6 DIMMs	D		D		D	P		D		D		D
2 DCPMMs and 4 DIMMs	P		D		D			D		D		P
2 DCPMMs and 6 DIMMs	D		D		D	P	P	D		D		D
2 DCPMMs and 8 DIMMs	P		D	D	D	D	D	D	D	D		P
4 DCPMMs and 6 DIMMs	D		D	P	D	P	P	D	P	D		D
6 DCPMMs and 6 DIMMs	D	P	D	P	D	P	P	D	P	D	P	D

Table 2. Supported DCPMM capacity in App Direct Mode with one processor.
Total DCPMMs	Total DIMMs	Processor Family	128 GB DCPMM	256 GB DCPMM	512 GB DCPMM
1	6	L	√	√	√
		M	√	√	√
		Other	√	√	√²
2	4	L	√	√	√
		M	√	√	√
		Other	√	√
2	6	L	√	√	√
		M	√	√	√
		Other	√	√²
2	8	L	√	√	√
		M	√	√	√
		Other	√²	√²
4	6	L	√	√	√
		M	√	√
		Other	√²
6	6	L	√	√	√
		M	√	√²
		Other	√¹

Note

Supported DIMM capacity is up to 32 GB.
Supported DIMM capacity is up to 64 GB.

App Direct Mode with two processors

Note

When adding one or more DCPMMs and DIMMs during a memory upgrade, you might need to move other DCPMMs and DIMMs that are already installed to new locations.

Table 3. App Direct Mode with two processors.
D: All supported DDR4 DIMM except 8GB 1Rx8 RDIMM P: Only Data Center Persistent Memory Module (DCPMM) can be installed on the corresponding DIMM slots.
Configuration	Processor 2												Processor 1
Configuration	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1
1 DCPMM and 12 DIMMs	D		D		D			D		D		D	D		D		D		P	D		D		D
2 DCPMMs and 12 DIMMs	D		D		D		P	D		D		D	D		D		D		P	D		D		D
4 DCPMMs and 8 DIMMs	P		D		D			D		D		P	P		D		D			D		D		P
4 DCPMMs and 12 DIMMs	D		D		D	P	P	D		D		D	D		D		D	P	P	D		D		D
4 DCPMMs and 16 DIMMs	P		D	D	D	D	D	D	D	D		P	P		D	D	D	D	D	D	D	D		P
8 DCPMMs and 12 DIMMs	D		D	P	D	P	P	D	P	D		D	D		D	P	D	P	P	D	P	D		D
12 DCPMMs and 12 DIMMs	D	P	D	P	D	P	P	D	P	D	P	D	D	P	D	P	D	P	P	D	P	D	P	D

Table 4. Supported DCPMM capacity in App Direct Mode with two processors.
Total DCPMMs	Total DIMMs	Processor Family	128 GB DCPMM	256 GB DCPMM	512 GB DCPMM
1	12	L	√	√	√
		M	√	√	√
		Other	√	√	√²
2	12	L	√	√	√
		M	√	√	√
		Other	√	√	√²
4	8	L	√	√	√
		M	√	√	√
		Other	√	√
4	12	L	√	√	√
		M	√	√	√
		Other	√	√²
4	16	L	√	√	√
		M	√	√	√
		Other	√²	√²
8	12	L	√	√	√
		M	√	√
		Other	√²
12	12	L	√	√	√
		M	√	√²
		Other	√¹

Note

Supported DIMM capacity is up to 32 GB.
Supported DIMM capacity is up to 64 GB.

Give documentation feedback

App Direct Mode

App Direct Mode with one processor​

App Direct Mode with two processors​

App Direct Mode with one processor

App Direct Mode with two processors