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FusionServer Pro XH321 V5 Server Node
Maintenance and Service Guide
A.3 RAS Features
The server supports a variety of Reliability, Availability, and Serviceability (RAS)
features. You can configure these features for better RAS.
For details about how to configure RAS features, see
Platform BIOS Parameter Reference
Table A-6 RAS features
Module
CPU
DIMM
PCIe
UPI
Issue 17 (2021-03-09)
Feature
Corrected Machine Check
Interrupt
Failed DIMM Isolation
Memory Thermal
Throttling
Rank Sparing
Memory Address Parity
Protection
Memory Demand and
Patrol Scrubbing
Memory Mirroring
Single Device Data
Correction
Device Tagging
Data Scrambling
PCIe Advanced Error
Reporting
Intel UPI Link Level Retry
Copyright © Huawei Technologies Co., Ltd.
Huawei Server Purley
.
Description
Corrects error-triggered interruption.
Identifies a faulty DIMM and isolates it
from others before it is replaced.
Automatically adjusts DIMM
temperatures to avoid damage due to
overheating.
Allocates some memory ranks as
backup ranks to prevent the system
from crashing due to uncorrectable
errors.
Detects memory command and
address errors.
Corrects errors upon detection. If these
errors are not corrected promptly,
uncorrectable errors may occur.
Improves system reliability.
Provides a single-device multi-bit error
correction capability to improve
memory reliability.
Degrades and rectifies DIMM device
faults to improve DIMM availability.
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.
Improves server serviceability.
Provides a retry mechanism upon
errors to improve UPI reliability.
A Appendix
165
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