Lenovo ThinkSystem SR630 Maintenance Manual page 170

--bmc USERID:PASSW0RD@10.104.195.86
Where 20 is the selectable percentage.
Adding or replacing PMEMs in App Direct Mode
Complete the following steps before adding or replacing PMEMs in App Direct Mode.
1. Back up stored data in PMEM namespaces.
2. Disable PMEM security with one of the following options:
• LXPM
Go to UEFI Setup ➙ System Settings ➙ Intel Optane PMEMs ➙ Security ➙ Press to Disable
Security, and input passphrase to disable security.
• Setup Utility
Go to System Configuration and Boot Management ➙ System Settings ➙ Intel Optane PMEMs
➙ Security ➙ Press to Disable Security, and input passphrase to disable security.
3. Delete namespaces with command corresponding to the operating system that is installed:
• Linux command:
ndctl destroy-namespace all -f
• Windows Powershell command
Get-PmemDisk | Remove-PmemDisk
4. Clear Platform Configuration Data (PCD) and Namespace Label Storage Area (LSA) with the following
ipmctl command (for both Linux and Windows).
ipmctl delete -pcd
Notes: See the following links to learn how to download and use impctl in different operating systems:
• Windows: https://datacentersupport.lenovo.com/us/en/videos/YTV101407
• Linux: https://datacentersupport.lenovo.com/us/en/solutions/HT508642
5. Reboot the system.
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. Ensure that the ratio of total DRAM DIMM capacity
to total PMEM capacity within a processor is between 1:1 and 1:8.
With one processor
Table 49. Memory population in App Direct Mode with one processor (CPU 1)
• D: DRAM DIMM
• P: Persistent Memory Module (PMEM)
Configuration
1
1 PMEM and 6 D
DIMMs*
1 PMEM and 8 D
DIMMs*
2 PMEMs and 12 D
DIMMs
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3 5 6
2 4
D
P
D D
P
D D D
P
DIMM slots
8 9 10
7
D D
D D
D D D D
13 15
11 12 14
D
D D
D D
P
16
D
D
D D