Dell PowerEdge R740 EMC NVDIMM-N Persistent Memory User Guide - Page 26

Log Messaging Errata, Remote Management, NVDIMM-N Error Reporting

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Figure 16. BBU Status Log Messaging Errata The following errata affects the messaging in the System Event Log: • When UEFI0340 is logged in the Lifecycle controller log, the System Event Log and Lifecycle controller logs can have entries with the following message "An unsupported event occurred." This message can be ignored and shall be fixed in a future iDRAC release. • When UEFI0302 is logged for an Erase Error in the Lifecycle Controller Log, the System Event Log and Lifecycle controller logs can have entries with the following message "An unsupported event occurred." This message can be ignored and shall be fixed in a future iDRAC release. Remote Management When a server with NVDIMM-Ns installed is powered down, the server will initiate a Save to backup NVDIMM-N DRAM data to its onboard flash. The Save process takes approximately 1 minute to complete with 16GB NVDIMM-Ns. During this time the server will be in a reset state, and any remote power on requests from iDRAC will be queued to proceed after the Save is complete. Remote power on requests may appear to be unresponsive while an NVDIMM-N Save is in progress. NVDIMM-N Error Reporting The table below provides a list of possible error events that can be logged to the server System Event Log. The table also provides the recommended action for each error. Table 10. NVDIMM-N Error Reporting ID Event Message Recommended Action MEM9020 The Non-Volatile Dual In-line Memory Module (NVDIMM) device in the slot [location] is about to reach the end of supported life duration. During the next scheduled maintenance, replace the Non-Volatile Dual In-line Memory Module (NVDIMM) device. For more information about the usage of NVDIMMs, see the system Owner's Manual on the support site. 26 iDRAC NVDIMM-N Management

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Figure 16. BBU Status
Log Messaging Errata
The following errata affects the messaging in the System Event Log:
•
When UEFI0340 is logged in the Lifecycle controller log, the System Event Log and Lifecycle controller logs can have entries with the
following message “An unsupported event occurred.” This message can be ignored and shall be fixed in a future iDRAC release.
•
When UEFI0302 is logged for an Erase Error in the Lifecycle Controller Log, the System Event Log and Lifecycle controller logs can
have entries with the following message “An unsupported event occurred.” This message can be ignored and shall be fixed in a future
iDRAC release.
Remote Management
When a server with NVDIMM-Ns installed is powered down, the server will initiate a Save to backup NVDIMM-N DRAM data to its
onboard flash. The Save process takes approximately 1 minute to complete with 16GB NVDIMM-Ns. During this time the server will be in a
reset state, and any remote power on requests from iDRAC will be queued to proceed after the Save is complete. Remote power on
requests may appear to be unresponsive while an NVDIMM-N Save is in progress.
NVDIMM-N Error Reporting
The table below provides a list of possible error events that can be logged to the server System Event Log. The table also provides the
recommended action for each error.
Table 10. NVDIMM-N Error Reporting
ID
Event Message
Recommended Action
MEM9020
The Non-Volatile Dual In-line Memory
Module (NVDIMM) device in the slot
[location] is about to reach the end of
supported life duration.
During the next scheduled maintenance,
replace the Non-Volatile Dual In-line
Memory Module (NVDIMM) device. For
more information about the usage of
NVDIMMs, see the system Owner's Manual
on the support site.
26
iDRAC NVDIMM-N Management