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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
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 "DCPMM and DRAM DIMM installation order" in Memory Population Reference 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 "DCPMM installation: Memory Mode" in Memory Population Reference 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 "DCPMM and DRAM DIMM installation order" in Memory Population
Reference to install all the DCPMMs and DRAM DIMMs (see
8. Disable security on all the installed DCPMMs (see
page
103).
9. Make sure the DCPMM firmware is the latest version. If not, update it to the latest version (see
sysmgt.lenovofiles.com/help/topic/com.lenovo.lxca.doc/update_fw.html
10. Configure DCPMMs so that the capacity is available for use (see
(PMem)" on page
103).
11. Restore the data that have been backed up.
"Update the firmware" on page
"Install a memory module" on page
"Configure Persistent Memory Module (PMem)" on
).
"Configure Persistent Memory Module
Chapter 3
98).
78).
https://
.
Server hardware setup
65
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