Mod
ule
Feature Description
Rank sparing Allocates memory ranks as backup ranks to prevent the
system from crashing due to uncorrectable errors.
Memory address parity
protection
Detects memory command and address errors.
Memory demand and
patrol scrubbing
Provides the memory patrol function for promptly
correcting correctable errors upon detection. If these
errors are not corrected promptly, uncorrectable errors
may occur.
Memory mirroring Improves system reliability.
Single device data
correction (SDDC)
Provides a single-device, multi-bit error correction
capability to improve memory reliability.
Device tagging Degrades and rectifies DIMM device faults to improve
DIMM availability.
Data scrambling Optimizes data stream distribution and reduces the
error possibility to improve the reliability of data
streams in the memory and the capability to detect
address errors.
PCIe PCIe advanced error
reporting
Improves server serviceability.
QPI Intel QPI link level retry Provides a retry mechanism upon encountering errors
to improve QPI reliability.
Intel QPI protocol
protection via CRC
Provides cyclic redundancy check (CRC) protection
for QPI packets to improve system reliability.
OS Core disable for fault
resilient boot (FRB)
Isolates a faulty CPU during startup to improve system
reliability and availability.
Corrupt data
containment mode
Identifies the memory storage unit that contains
corrupted data to minimize the impact on running
programs and improve system reliability.
Socket disable for FRB Isolates a faulty socket during startup to improve
system reliability.
Architected error
records
With the eMCA feature, the basic input/output system
(BIOS) collects error information recorded in hardware
registers in compliance with UEFI specifications, sends
the error information to the OS over the APEI of the
Advanced Configuration and Power Interface (ACPI),
and locates the error unit, improving system
availability.
Error injection support Injects errors to verify various RAS features.
5288 V3 Server
User Guide
2 Product Overview
Issue 26 (2018-11-19) Copyright © Huawei Technologies Co., Ltd. 42
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