IBM RS/6000 SP, Руководство пользователя

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Chapter 3. SP-attached servers and Clustered Enterprise Servers
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The 7026-H80's rack-mounted drawer configuration offers flexibility regarding the
number of CEC and I/O drawers that can be mounted in the rack, providing more
compute and I/O power per square foot of valuable floor space. The 7026-H80
CEC and I/O drawers each require 5U (EIA Units) of rack space. Thus, a
7026-H80 configuration requires only 10U of rack space. This configuration,
which consists of one CEC drawer and one I/O drawer, provides 14 available
hot-plug PCI slots with up to six processors and 16 GB of memory.
External disk storage is required for the 7026-H80 as data storage internal to the
drawers is not provided; however, optional boot bays are available in the I/O
drawer. (The internal boot disk option requires the space of two PCI slots,
leaving 12 available.) Memory in the CEC drawer can expand up to 16 GB,
providing ample operating performance for demanding applications.
The 7026-H80's reliability implementation, based on the CPU de-allocation
function, enables the system to take a failing processor off line without re-booting
the system. The service processor can record this action and notify the systems
administrator, or service personnel, of the condition. Computing operation
continues with the processor deactivated, allowing repair to be scheduled at a
time convenient to your processing schedule.
Hot-plug functionality of the PCI I/O subsystem brings new levels of up-time to
your system for the replacement or addition of I/O adapters. The design of this
function shows a concern for the usability, convenience, and safety for the
customer who performs this task. Selective disablement of an adapter can be
made, as necessary, while system operations, not dependent on this adapter,
continue to run without being affected. AIX assists the user by guiding him
through the process, helping to ensure success.
In addition, an HACMP packaged solution with dual 7026-H80 systems is offered
to provide industry-leading high availability. The high availability solutions
provided with the H80, can be ordered in a high-availability configuration with a
choice of components. The high-availability configurations combined with
ClusterProven software give you a superior base for your high-availability
requirements. The IBM high-availability solutions also provide a complete and
simple process for deciding which components are required and what software is
best suited to a high- availability environment.
The 7026-H80 performs its role as the entry, rack-based platform of the "X80"
family of SMP servers by complementing the deskside Model F80, the mid-sized
rack-based M80, and the powerful S80 in this broad server lineup. To assist in
migrating to the "X80" family, a serial number protected model conversion is
available for 7026-H70 customers who want to move to the 7026-H80 with
memory and adapters being moved to the new 7026-H80 system. In
addition,7026- H80 customers who require more system performance can obtain