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Notices and statements used in this book
The caution and danger statements used in this book also appear in the multilingual
Safety Information book provided on the IBM Documentation CD. Each caution and
danger statement is numbered for easy reference to the corresponding statements
in the safety book.
The following types of notices and statements are used in this book:
v Note: These notices provide important tips, guidance, or advice.
v Important: These notices provide information or advice that might help you avoid
inconvenient or problem situations.
v Attention: These notices indicate possible damage to programs, devices, or
data. An attention notice is placed just before the instruction or situation in which
damage could occur.
v Caution: These statements indicate situations that can be potentially hazardous
to you. A caution statement is placed just before the description of a potentially
hazardous procedure step or situation.
v Danger: These statements indicate situations that can be potentially lethal or
extremely hazardous to you. A danger statement is placed just before the
description of a potentially lethal or extremely hazardous procedure step or
situation.
What your server offers
The design of your server takes advantage of advancements in symmetric
multiprocessing (SMP), data storage, disk-array technologies, and memory
management. Your server combines:
v IBM X-architecture technology
IBM X-architecture technology is an IBM design blueprint that takes full
advantage of existing IBM technologies to build powerful, scalable, and reliable
Intel-processor-based servers.
v Impressive performance using an innovative approach to SMP
Your server supports up to four Intel Xeon MP microprocessors with
Hyper-Threading technology and Intel NetBurst
™
microarchitecture. Your server
comes with at least one microprocessor installed; you can install additional
microprocessors to enhance performance and provide SMP capability. You can
enable the Hyper-Threading feature through the Advanced Setup menu of the
Configuration/Setup Utility program. See “Using the Configuration/Setup Utility
program” on page 14 for details about the Configuration/Setup Utility program.
v Large data-storage and hot-swap capabilities
Your server supports up to six standard and six optional 26 mm (1-inch) slim-high
3.5-inch hot-swap hard disk drives in the hot-swap drive bays. This hot-swap
feature enables you to remove and replace hard disk drives without turning off
the server.
v Active
™
PCI and Active
™
PCI-X (hot-plug) adapter capabilities
Your server has six hot-plug slots for peripheral component interconnect (PCI)
adapters. With operating system support, you can replace failing hot-plug PCI
and PCI-X adapters without turning off the server. You can also add PCI and
PCI-X adapters in these slots without turning off the server, if your operating
system and the PCI and PCI-X adapter support the hot-add feature.
4 IBM xSeries 255 Type 8685: User’s Guide