Supero SuperServer 4048B-TRFT, Руководство пользователя

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Chapter 7: BIOS
7-31
Demand Scrub
Demand Scrubbing is a process that allows the CPU to correct correctable
memory errors found on a memory module. When the CPU or I/O issues a
demand-read command, and the read data from memory turns out to be a
correctable error, the error is corrected and sent to the requestor (the original
source). Memory is updated as well. Select Enable to use Demand Scrubbing
for ECC memory correction. The options are
Enable
and Disable.
Device Tagging
Select Enable to support device tagging. The options are
Disable
and Enable.
Memory Power Management
Select Enabled for memory power management support. The options are
Dis-
abled
and Enabled.
Memory Rank Mask
Select Enabled to support memory rank in the memory controller. The options
are
Disabled
and Enabled.
A7 Mode
Select Enabled to support A7 (Addressing) Mode to improve memory perfor-
mance. The options are
Disable
and Enable.
DDDC Support
Select Enabled to enable Double-Device Data Correction (DDDC) support for
the error-correction codes to correct memory errors caused by two failed DRAM
devices. The options are
Disable
and Enable.
DDDC Wirekill (Wire-Kill)
Select Enabled for Double-Device Data Correction (DDDC) Wire-kill support
which will disable the wire connection between two DRAM devices when they
fail. The options are
Disable
and Enable.
DDDC Wirekill (Wire-Kill) Threshold
Use this feature to set the DDDC Wirekill threshold. When the memory errors
reach the threshold,wire-connections between the failed DRAM modules will be
disconnected. The options are
Disable
and Enable.
Apply Memory RAS (Reliability-Availability-Serviceability Policy Globally
When this item is set to Enabled, the con fi guration settings for memory sparing,
Mirroring, DDDC, Device-Tagging will be applied to all nodes in the system. The
options are
Disable
and Enable.