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Dell EMC NVDIMM-N Persistent Memory User Guide

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NVDIMM-N Errors

In the majority of cases where NVDIMM-N modules have an error, the system level behavior will be for the bad NVDIMM-N module to be put into a read-only state. This will cause any VMs mapped to ANY NVDIMM-N modules in the system to fail to power-on including VMs which are not mapped to the bad NVDIMM-N module. If an NVDIMM-N is flagged as having an error, resolve the issue with that NVDIMM-N then attempt to access VMs connected to the PMEM datastore again. Please see ESXi documentation for more information about migrating data and restoring access to impacted VMs.

Figure 1. NVDIMM-N Errors
This image shows NVDIMM-N Errors.

Refer to table below for the Overall Health Status message shown on ESXi Web Client in the event of the following errors:

Table 1. Overall Health Status message shown on ESXi Web ClientThis table shows overall Health Status message shown on ESXi Web Client.
StatusErrors
Save Error – pre OS bootMaintenance Needed
Restore Error – pre OS bootMaintenance Needed
Erase Error – pre OS bootMaintenance Needed
Arm Error – pre OS bootMaintenance Needed
Controller Error – pre OS bootMaintenance Needed
Controller Error at OS run timeNo OHS error until next boot, logged in SEL real time
Invalid Firmware or Firmware running from Backup Slot Maintenance Needed
NVDIMM-N Battery Failure at OS run-timeAll Data Loss
NVDIMM-N Battery Failure – pre OS bootMaintenance Needed

All the above error messages are also accompanied by equivalent messages in the System Event Log and Lifecycle Controller Log as described in the Sections 5 and 6 of this User Guide.

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