Lenovo 7D8T, Maintenance Manual

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• Linux: https://datacentersupport.lenovo.com/us/en/solutions/HT508642
6. Reboot the system, and press F1 to enter Setup Utility.
7. Power off the system.
8. Remove the modules to be reused for a new system or configuration.
PMEMs installed in wrong slots after system board replacement
If this warning message appears, complete the following steps:
DIMM
X
of Intel Optane PMEM persistent interleave set should be moved to DIMM
Y
.
1. Record each of the instructions of changing PMEM slot from XCC events.
2. Power off the system, and remove the PMEMs that are mentioned in the warning messages. It is
suggested to label these PMEMs to avoid confusion.
3. Install the PMEMs in the correct slot number indicated in the warning messages. Remove the labels to
avoid blocking airflow and cooling.
4. Complete replacement and power on the system. Make sure there is no similar warning messages in
XCC.
Note:
Do not perform any provisioning on PMEM to avoid data lost when the messages are still present in
XCC events.
After PMEMs are reconfigured, error messages and LEDs persist to indicate PMEMs are installed in
wrong slots
AC the system or restart XCC to solve this problem.
Cannot create goal successfully when installing PMEMs to the system for the first time
When seeing ones of the following messages:
• ERROR: Cannot retrieve memory resources info
• ERROR: One or more PMEM modules do not have PCD data. A platform reboot is recommended to
restore valid PCD data.
Complete the following steps to solve the problem.
1. If the PMEMs have been installed in another system with stored data, perform the following steps to
erase the data.
a. Based on the original population order, install the PMEMs to the original system where they were
installed previously, and back up the data from the PMEMs to other storage devices.
b. 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.
c. 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
Chapter 4
.
Problem determination
187