Dell EMC VxFlex Ready Node - Prepare an NVDIMM as a DAX Device; NVDIMM Information Table

Table 16 NVDIMM information table
Item Replacement NVDIMM
Serial Number
Device name (NMEM)
Namespace
DAX device name (chardev)
Acceleration device path
Prepare an NVDIMM as a DAX device
Prepare a new or replacement NVDIMM as a DAX device before adding it to the SDS. This step is optional when
replacing an NVDIMM battery.
About this task
Note: If you replaced the system board, perform the following steps for each NVDIMM mounted on the server.
Procedure
1. Using SSH, log in to the Linux server.
2. Vew information for the new/replacement NVDIMM:
dmidecode --type memory | grep "Non-" -B 3 -A 3 | grep -E 'Locator|Serial' | grep -v
Bank
Output similar to the following appears:
Locator: A7
Serial Number: 17496594
Locator: B7
Serial Number: 174965AC
3. Find the serial number in the output and record it in the NVDIMM information table.
4. Display the correlation between the ID and NMEM device name of each NVDIMM mounted on the server:
ndctl list -Dvvv | jq '.[0] .dimms'
Output similar to the following appears:
[
{
"dev": "nmem1",
"id": "802c-0f-1722-174965ac",
"handle": 4097,
"phys_id": 4370,
"health": {
"health_state": "ok",
"temperature_celsius": 255,
"life_used_percentage": 29
}
},
{
"dev": "nmem0",
Additional configurations
68 VxFlex Ready Node Operating System Installation Guide for Linux