Abbreviatio
n
Full Form Denition Application
Scenario
NRSP&SUB Non-regular
spare part
replaceable
at lower
levels
Classied as a type of NRSP.
RSPs or NRSPs available at
lower levels.
Central country
warehouses by
contract service
type, not SLA or
service site.
Lower level parts
vary with type.
NSP&SUB Non spare
part
replaceable
at lower
levels
Not a spare part.
RSPs or NRSPs available at
lower levels.
Not stored.
Lower level parts
vary with type.
A.2 BIOS
The basic input/output system (BIOS) is the most basic software loaded to a
computer hardware system. It provides an abstraction layer between the computer
hardware and the OS. It is used to perform hardware initialization during the boot
process and provide runtime services for the OS and programs. Figure A-1 shows
the BIOS position in the system.
The BIOS data is stored on the Serial Peripheral Interface (SPI)
ash memory. The
BIOS performs a power-on self-test (POST), initializes CPU and memory, checks
the I/O and boot device, and
nally boots the OS. The BIOS also supports the
advanced conguration and power interface (ACPI) and hot swap setting.
HUAWEI Kunpeng 920 platform server is a patented BIOS product with
independent intellectual property rights. It supports customization and provides a
variety of in-band and out-of-band
conguration functions as well as high
scalability.
TaiShan 200 Server
Maintenance and Service Guide (Model 2280) A Appendix
Issue 04 (2020-01-16) Copyright © Huawei Technologies Co., Ltd. 196
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