NEC Express5800 Series Maintenance Manual page 81

Chapter 2 Useful Features
Option
Node Interleaving
Memory Mirroring
Mode
Memory Remap
Persistent Memory
Options
Parameter
Enabled
[Disabled]
[Full Mirror]
Partial Mirror(OS Configured)
Partial Mirror(Memory below 4GB)
Partial Mirror(10% above 4GB)
Partial Mirror(20% above 4GB)
[No Action]
All Memory
-
Express5800/R120h-1E, R120h-2E Maintenance Guide
Description
Use this option to disable the NUMA architecture
properties for the system. All operating system
platforms support NUMA architectures. In most
cases, optimum performance is obtained by
disabling the Node Interleaving option. When this
option is enabled, memory addresses are
interleaved across the memory installed for each
processor. Some workloads might experience
improved performance when this option is enabled.
Node Interleaving cannot be enabled when
NVDIMMs are present in the system.
Use this option to select from the available Memory
Mirroring modes. Full Mirror - reserves 50% of the
total available memory for mirroring. Partial Mirror
(20% above 4GB) - reserves 20% of the total
available Memory above 4GB for Mirroring. Partial
Mirror (10% above 4GB) - reserves 10% of the total
available Memory above 4GB for Mirroring. Partial
Mirror (Memory below 4GB) - depending on the
memory configuration, sets up 2GB or 3GB of lower
memory below 4GB for Mirroring. Partial Mirror (OS
Configured) - sets up the system to configure
Partial Mirroring at OS level.
Use this option to remap memory that may have
been previously disabled from the system due to a
failure event, such as an uncorrectable memory
error. The Remap All Memory Option causes the
system to make all memory in the system available
again on the next boot. The No Action option
leaves any affected memory unavailable to the
system.
Use this option to configure persistent memory
when it is present in the system.
[ ]: Default setting
1. System Utilities
81