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NVDIMM Temperature not readable in AFF A900 due to NVRAM module

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Applies to

  • AFF A900
  • NVRAM module

Issue

Node was continuously triggering the temperature sensor unreadable errors on NVDIMMs.

  • CONSOLE-LOGS (During the boot process)

node1:monitor.temp.unreadable:error]: The controller temperature (PM40068B Temp) is not readable.
node1:monitor.temp.unreadable:error]: The controller temperature (FPGA Temp 0) is not readable.
node1:monitor.temp.unreadable:error]: The controller temperature (FPGA Temp 1) is not readable.
node1:monitor.temp.unreadable:error]: The controller temperature (NV M.2 Temp) is not readable.
node1:monitor.temp.unreadable:error]: The controller temperature (NVDIMM 1 Temp) is not readable.
node1:monitor.temp.unreadable:error]: The controller temperature (NVDIMM 2 Temp) is not readable.

 

  • Environment-Sensor 
         PM40068B Temp         not-available - C          0        1      95     1
     VBAT P8V              not-available - mV      7000     7400    8550    89
     HS VOUT               not-available - mV     10560    11160   12840   134
     HS Current            not-available - mA         0     1000   14000   150
     NV DIMM1 CECC Count   not-available - cycles     -        -       -
     NV DIMM2 CECC Count   not-available - cycles     -        -
  • BMC-LOGS (bmc status -d)
​​cat /mnt/logs/frumsgs
=====================
node1 fru_mond[1044]: [ERROR]Start locater is incorrect 0xffffffff
node1 fru_mond[1044]: [ERROR]Platform VPD Header is corrupted on fru NVS
node1 fru_mond[1044]: [ERROR]Could not read platform vpd header information
node1 fru_mond[1044]: [ERROR]Start locater is incorrect 0xffffffff
node1 fru_mond[1044]: [ERROR]Platform VPD Header is corrupted on fru NVS
node1 fru_mond[1044]: [ERROR]Could not read platform vpd header information

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