Dell PowerEdge R740 EMC NVDIMM-N Persistent Memory User Guide - Page 20

Table 7. BIOS setup screen, System Setup

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Figure 12. Persistent Memory screen The following table describes each option that is available in the BIOS setup screen. Table 7. BIOS setup screen Option Description 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. Node Interleaving is not supported when NVDIMM-N is present in the system. WARNING: When Persistent Memory Interleaving is enabled in the Persistent Memory System Setup page, Node Interleaving setting also applies to Persistent Memory Interleaving. This option is set to Disabled by default. Persistent Memory Enables or disables NVDIMM-N operation. If this option is set to Off, NVDIMM-Ns are not mapped to System Physical Address (SPA) and are not presented to the OS. Data that has already persisted to NVDIMM flash are unaffected and are available for OS utilization when this option is returned to NonVolatile DIMM. This option is set to Non-Volatile DIMM by default. NVDIMM-N Read-Only When set to Enable, this forces NVDIMMs to be read-only. NVDIMM-N data is accessible to the OS but locked from any modifications. Read-only is intended for debug or maintenance operations. This option is set to Disable by default. NVDIMM-N Factory Reset and Secure Erase All Dimms Enables resetting the NVDIMM-N to factory defaults and clearing data on the NVDIMM-N. If set to Enable, all data on all NVDIMM-N will be erased. This option does not clear the NVDIMM's health information, and should be used to remove data and/or repurpose the NVDIMM-N. The reset and data erasure will occur when BIOS confirms that Setting Changes should be saved. This option is set to Disable by default. 20 BIOS

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Figure 12. Persistent Memory screen
The following table describes each option that is available in the BIOS setup screen.
Table 7. BIOS setup screen
Option
Description
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. Node Interleaving is not supported when NVDIMM-N is present in the system.
WARNING:
When Persistent Memory Interleaving is enabled in the Persistent Memory
System Setup page, Node Interleaving setting also applies to Persistent Memory
Interleaving.
This option is set to
Disabled
by default.
Persistent Memory
Enables or disables NVDIMM-N operation. If this option is set to
Off
, NVDIMM-Ns are not mapped to
System Physical Address (SPA) and are not presented to the OS. Data that has already persisted to
NVDIMM flash are unaffected and are available for OS utilization when this option is returned to
Non-
Volatile DIMM
.
This option is set to
Non-Volatile DIMM
by default.
NVDIMM-N Read-Only
When set to
Enable
, this forces NVDIMMs to be read-only. NVDIMM-N data is accessible to the OS
but locked from any modifications. Read-only is intended for debug or maintenance operations.
This option is set to
Disable
by default.
NVDIMM-N
Factory Reset and
Secure Erase All
Dimms
Enables resetting the NVDIMM-N to factory defaults and clearing data on the NVDIMM-N. If set to
Enable
, all data on all NVDIMM-N will be erased. This option does not clear the NVDIMM’s health
information, and should be used to remove data and/or repurpose the NVDIMM-N. The reset and data
erasure will occur when BIOS confirms that Setting Changes should be saved.
This option is set to
Disable
by default.
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BIOS