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– In App Direct Mode, the DRAM DIMMs that are installed can be configured to mirror mode.
– When only one PMem is installed for each processor, only not-interleaved App Direct Mode is
supported.
• Mixed Memory Mode (1-99% of PMem capacity acts as system memory):
In this mode, some percentage of PMem capacity is directly accessible to specific applications (App
Direct), while the rest serves as system memory. The App Direct part of PMem is displayed as persistent
memory, while the rest of PMem capacity is displayed as system memory. DRAM DIMMs act as cache in
this mode.
The total displayed volatile system memory in this mode is the PMem capacity that is invested in volatile
system memory.
• Memory Mode (100% of PMem capacity acts as system memory):
In this mode, PMems act as volatile system memory, while DRAM DIMMs act as cache.
The total displayed volatile system memory in this mode is the sum of PMem capacity.
PMem Management options
PMems can be managed with the following tools:
• Lenovo XClarity Provisioning Manager (LXPM)
To open LXPM, power on the system and press the key specified in the on-screen instructions as soon as
the logo screen appears.
Go to UEFI Setup ➙ System Settings ➙ Intel Optane PMems to configure and manage PMems.
For more details, see the "UEFI Setup" section in the Lenovo XClarity Provisioning Manager
documentation version compatible with your server at
Note: If the text-based interface of Setup Utility opens instead of Lenovo XClarity Provisioning Manager,
go to System Settings ➙ <F1> Start Control and select Tool Suite. Then, reboot the system and press
the key specified in the on-screen instructions as soon as the logo screen appears to open Lenovo
XClarity Provisioning Manager.
• Setup Utility
To enter Setup Utility:
1. Power on the system and press the key specified in the on-screen instructions to open LXPM.
2. Go to UEFI Settings ➙ System Settings, click on the pull-down menu on the upper right corner of
the screen, and select Text Setup.
3. Reboot the system, and press the key specified in the on-screen instructions as soon as the logo
screen appears.
* *
Go to System Configuration and Boot Management ➙ System Settings ➙ Intel Optane PMems to
configure and manage PMems.
• Lenovo XClarity Essentials OneCLI
Some management options are available in commands that are executed in the path of Lenovo XClarity
Essentials OneCLI in the operating system. See
to learn how to download and use Lenovo XClarity Essentials OneCLI.
For more information, see the "Startup" section in the LXPM documentation compatible with your
* *
Note:
server at
https://pubs.lenovo.com/lxpm-overview/
Following are the available management options:
ThinkSystem SR850 Setup Guide
122
If a password has been set, enter the password to unlock LXPM.
* *
* *
https://pubs.lenovo.com/lxce-onecli/download_use_onecli
.
https://pubs.lenovo.com/lxpm-overview/
.
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