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Huawei FusionServer Pro 1288X V5 Server
Technical White Paper
Module
UPI
System
Issue 02 (2020-04-20)
Feature
Intel UPI Link Level Retry
Intel UPI Protocol
Protection via CRC
Core Disable for Fault
Resilient Boot (FRB)
Corrupt Data Containment
Mode
Socket disable for Fault
Resilient Boot (FRB)
Architected Error Records
Error Injection Support
Machine Check
Architecture
eMCA: Gen2
OOB access to MCA
registers
Copyright © Huawei Technologies Co., Ltd.
Description
Provides a retry mechanism upon
errors to improve UPI reliability.
Provides cyclic redundancy check
(CRC) protection for UPI packets to
improve system reliability.
Isolates a faulty CPU core during
startup to improve system reliability
and availability.
Identifies the memory storage unit
that contains corrupted data to
minimize the impact on the running
programs and improve system
reliability.
Isolates a faulty socket during the
BIOS startup process to improve
system reliability.
With the enhanced machine check
architecture (eMCA) feature, the BIOS
collects error information from
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.
Injects errors to verify various RAS
features.
Provides software recovery for
uncorrectable errors to improve system
availability.
Improves system availability.
The OBB system accesses MCA
registers by using the Platform
Environment Control Interface (PECI).
If a fatal error occurs in the system,
the out-of-band system collects onsite
data to facilitate fault analysis and
locating and improve system
serviceability.
A Appendix
55
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