Adding Memory Modules With Dcpmms - Lenovo ThinkAgile MX User Manual

--imm USERID:PASSW0RD@10.104.195.86
• DCPMM Configuration
DCPMM contains spared internal cells to stand in for the failed ones. When the spared cells are exhausted
to 0%, there will be an error message, and it is advised to back up data, collect service log, and contact
Lenovo support.
There will also be a warning message when the percentage reaches 1% and a selectable percentage
(10% by default). When this message appears, it is advised to back up data and run DCPMM diagnostics
(see https://sysmgt.lenovofiles.com/help/topic/LXPM/running_diagnostics.html
percentage that the warning message requires, go to Intel Optane DCPMMs ➙ DCPMM Configuration,
and input the percentage.
Alternatively, change the selectable percentage with the following command in OneCLI:
onecli.exe config set IntelOptaneDCPMM.PercentageRemainingThresholds 20
--imm USERID:PASSW0RD@10.104.195.86
Where 20 is the selectable percentage.

Adding memory modules with DCPMMs

Follow the instructions in this section to add memory modules to the existing configuration with DCPMMs.
If DCPMMs are already installed and configured in the system, complete the following steps to add new
memory modules.
1. Update the system firmware to the latest version (see "Updating firmware" on page 34).
2. Consider the following DCPMM requirements before acquiring new DCPMM units.
• All the DCPMMs 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 of the same part number.
3. See "Memory module installation rules" in ThinkSystem SR630 Maintenance Manual to determine the
new configuration, and acquire memory modules accordingly.
4. If the DCPMMs are in Memory Mode and will stay in Memory Mode after new units are installed, follow
the combination in Memory Mode to install the new modules in the correct slots. Otherwise, go to the
next step.
5. Make sure to back up the stored data.
6. If the App Direct capacity is interleaved:
a. Delete all the created namspaces and filesystems in the operating system.
b. Perform secure erase on all the DCPMMs that are installed. Go to Intel Optane DCPMMs ➙
Security ➙ Press to Secure Erase to perform secure erase.
Note: If one or more DCPMMs are secured with passphrase, make sure security of every unit is
disabled before performing secure erase. In case the passphrase is lost or forgotten, contact Lenovo
service.
7. Follow the slot combination in "Memory module installation rules" in ThinkSystem SR630 Maintenance
Manual to install all the DCPMMs and DRAM DIMMs.
8. Disable security on all the installed DCPMMs (see "Configuring DC Persistent Memory Module
(DCPMM)" on page 36).
.
Chapter 4 Hardware removal, installation and management guidelines
). To adjust the selectable
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