Dell EMC PowerEdge R640 Installation And Service Manual page 46

Option Description
Current State of Specifies the current state of the memory operating mode.
Memory Operating
Mode
Node Interleaving Specifies if Non-Uniform Memory Architecture (NUMA) is supported. If this field is set to Enabled, memory
interleaving is supported if a symmetric memory configuration is installed. If the field is set to Disabled, the system
supports NUMA (asymmetric) memory configurations. This option is set to Disabled by default.
Opportunistic Self- Enables or disables opportunistic self-refresh feature. This option is set to Disabled by default.
Refresh
Persistent Memory This field controls Persistent Memory on the system.
Persistent Memory details
The Persistent Memory screen details are explained as follows:
Option Description
Persistent Memory Enables or disables persistency for NVDIMM-N. If this option is set to Off, persistency for all NVDIMM-N is
disabled and is not presented to OS (data is not preserved). If this option is set to Non-Volatile DIMM, persistency
for all NVDIMM-N is enabled and presented to OS (data is preserved). This option is set to Non-Volatile DIMM by
default.
NVDIMM-N Read- Enables or disables the read-only option for the NVDIMM-N. If set to Enable, all NVDIMM-N is forced to read-only.
Only Read-only is intended to be for debug or maintenance when customers would like to access the NVDIMM-N data
and also to lock it from being updated. This option is set to Disable by default.
NVDIMM-N Enables or disables clearing data on the NVDIMM-N. If set to Enable, all data on the NVDIMM-N is lost. This
Factory Reset and option is used to remove data on the NVDIMM-N, repurpose your system. This option is set to Disable by default.
Secure Erase All
Dimms
NVDIMM-N Enables or disables interleaving on NVDIMM-N. Volatile RDIMM interleaving policy is not affected by this option.
Interleave This option is set to Disable by default.
Battery Status Indicates if the NVDIMM-N battery is ready. Battery Status can display one of the following states:
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•
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The following settings are applicable for every NVDIMM-N present in the system.
NVDIMM-N Specifies the location of the NVDIMM-N in each channel.
Memory Location
NVDIMM-N Specifies information on the capacity of the NVDIMM-N.
Memory Size
NVDIMM-N Specifies information on the speed of the NVDIMM-N.
Memory Speed
NVDIMM-N Specifies information on the current firmware version on the NVDIMM-N.
Memory Firmware
version
46 Dell EMC PowerEdge R640 Installation and Service Manual
Pre-operating system management applications
NOTE: The Memory Operating Mode option can have different default and available options based on
the memory configuration of your system.
NOTE: The Dell Fault Resilient Mode option establishes an area of memory that is fault resilient. This
mode can be used by an operating system that supports the feature to load critical applications or
enables the operating system kernel to maximize system availability.
Present-Ready
Present-Offline
Not-Ready