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DC Persistent Memory Module (DCPMM) setup

Follow the instructions in this section to complete required setup before installing DCPMMs for the first time, determine the most suitable configuration, and install memory modules accordingly.

Complete the following steps to finish system setup to support DCPMM, and install the memory modules according to the designated combination.

  1. Update the system firmware to the latest version that supports DCPMM (see Update the firmware).

  2. Make sure to meet all the following requirements before installing DCPMMs.

    • All the DCPMMs that are installed must be of the same Lenovo part number.

    • All DRAM memory modules 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 memory modules of the same part number.

  3. Refer to Memory module installation rules to determine the most suitable combination and the following:
    • Number and capacity of the DCPMMs and DRAM memory modules to install
    • Check if the presently installed processors support the combination. If not, replace the processors with ones that support the combination.

  4. Based on the determined DCPMM combination, acquire the DCPMMs, DRAM memory modules and processors if necessary.

  5. Replace the processors if necessary (see Processor and heat sink replacement).

  6. Remove all the memory modules that are installed (see Remove a memory module).

  7. Follow the slot combination in Memory module installation rules to install all the DCPMMs and DRAM memory modules (see Install a memory module).

  8. Disable security on all the installed DCPMMs (see Configuring DC Persistent Memory Module (DCPMM)).

  9. Make sure the DCPMM firmware is the latest version. If not, update it to the latest version (see (lxca_fw_update)).

  10. Configure DCPMMs so that the capacity is available for use (see Configuring DC Persistent Memory Module (DCPMM).