Lenovo HR650X V2, Руководство пользователя

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Table 15. Mirroring mode with two processors (continued)
32 DIMMs 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
PMEM and DRAM DIMM installation order
This section contains information of how to install PMEMs and DRAM DIMMs properly.
PMEM rules
Make sure to meet the following requirements when applying PMEMs in the system.
• All the PMEMs that are installed must be of the same part number.
• All the DRAM DIMMs that are installed must be of the same type, rank, and capacity with minimum
capacity of 16 GB. It is recommended to use Lenovo DRAM DIMMs with the same part number.
For PMEM, the following memory modes are available:
• “App Direct Mode” on page 91
• “Memory Mode” on page 92
App Direct Mode
In this mode, PMEMs act as independent and persistent memory resources directly accessible by specific
applications, and DRAM DIMMs act as system memory. It is suggested that the ratio of DRAM DIMM
capacity to PMEM capacity is between 1:1 and 1:8.
With one processor
Table 16. Memory population in App Direct Mode with one processor
• D : DRAM DIMMs with 16 GB or larger capacity
• P : DC Persistent Memory Module (PMEM)
Configuration
Processor 0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 PMEM and 6
DIMMs
D D P D D D D
1 PMEM and 8
DIMMs
D D P D D D D D D
2 PMEMs and 12
DIMMs
D D D D P D D D D P D D D D
4 PMEMs and 4
DIMMs
P D P D D P D P
4 PMEMs and 8
DIMMs
D D P D D P P D D P D D
8 PMEMs and 8
DIMMs
D P D P D P D P P D P D P D P D
Chapter 4
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Hardware replacement procedures
91