Supermicro SuperServer 1029UZ-TN20R25M User Manual page 84

SuperServer 1029UZ-TN20R25M User's Manual
Mirror Mode
Select Enable to set all 1LM/2LM memory installed in the system on the mirror mode, which
will create a duplicate copy of data stored in the memory to increase memory security, but
it will reduce the memory capacity into half. The options are Disable, Mirror Mode 1LM
and Mirror Mode 2LM.
UEFI ARM Mirror
Select Enable to support the UEFI-based address range mirroring with setup option. The
options are Disable and Enable.
Memory Rank Sparing
Select Enable to support memory-rank sparing to optimize memory performance. The
options are Disable and Enable.
Note: This item will not be available when memory mirror mode is enabled.
Correctable Error Threshold
Use this item to enter the threshold value for correctable memory errors. The default setting
is 1.
SDDC Plus One
Select Enable for SDDC (Single Device Data Correction) Plus One support, which will
increase the reliability and serviceability of your system memory. The options are Disable
and Enable.
ADDDC (Adaptive Double Device Data Correction) Sparing
Select Enable for ADDDC sparing support to enhance memory performance. The options
are Disable and Enable.
Patrol Scrub
Patrol Scrubbing is a process that allows the CPU to correct correctable memory errors
detected in a memory module and send the corrections to the requestor (the original
source). When this item is set to Enable, the IO hub will read and write back one cache line
every 16K cycles if there is no delay caused by internal processing. By using this method,
roughly 64 GB of memory behind the IO hub will be scrubbed every day. The options are
Disable and Enable.
Patrol Scrub Interval
Use this item to specify the number of hours (between 0 to 24) required for the system to
complete a full patrol scrubbing. Enter 0 for patrol scrubbing to be performed automatically.
The default setting is 24.
Note: This item is hidden when Patrol Scrub item is set to Disable.
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