IBM RS/6000 SP Handbook page 126

The 7026-M80 is targeted at the key commercial processing segments of
e-business, ERP, SCM, and Business Intelligence. In each segment, the
7026-M80 can meet critical requirements. For example:
In ERP, the 7026-M80 is an application server with its powerful processors,
memory capacity, and optional data storage capability.
In e-business, the 7026-M80 can serve as a business- to-business Web
server, going to other systems for business data or hosting the data storage
itself.
The 7026-M80 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-M80
CEC requires 8U (EIA Units) of rack space, while each I/O drawer requires 5U of
space. Thus, a minimum 7026-M80 configuration requires only 13U of rack
space, while a maximum configuration fits into a 28U space. (The maximum
configuration, which consists of one CEC drawer and four drawers, provides 56
available hot-plug PCI slots with up to eight processors and 32 GB of memory).
Depending on the number of I/O drawers attached, up to two 7026-M80 systems
can be installed in the 7014-S00 or the new 7014-T00 racks with room remaining
to install external data storage drawers.
External disk storage is required for the 7026-M80 as data storage internal to the
drawers is not provided; however, optional boot bays are available in the first 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 32 GB,
providing ample operating performance for demanding applications.
Its reliability improvements based on CPU de-allocation function enables the
system to detect failing processors and take them 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 with guidance through the process, helping to ensure
success.
In addition, an HACMP packaged solution with dual 7026-M80s is offered to
provide industry-leading high availability.The high availability solutions provided
with the 7026-M80, can be ordered in a high-availability configuration with a
choice of components. The high-availability configurations combined with
102 RS/6000 SP and Clustered IBM ^ pSeries Systems Handbook