Supero X10SRW-F User Manual page 90

X10SRW-F User's Manual
Memory RAS (Reliability_Availability_Serviceability)
Configuration
Use this submenu to configure the following Memory RAS settings.
RAS Mode
Select Enable to enable RAS support to enhance reliability, availability and ser-
viceability of onboard memory modules. The options are Enable and Disable.
Lockstep x4 DIMMs
Select Enable to enable Lockstep Technology support for x4 DIMM modules.
The options are Auto, Disabled, and Enabled.
Memory Rank Sparing
This item indicates if memory rank sparing is supported by the motherboard.
Memory rank sparing enhances system memory performance. The options are
Enabled and Disabled.
Patrol Scrub
Patrol Scrubbing is a process that allows the CPU to correct correctable memory
errors detected in a memory module and send the correction 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 Enable and Disable.
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.
Demand Scrub
Demand Scrubbing is a process that allows the CPU to correct correctable
memory errors found in 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 corrected 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.
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