Chapter
1.
Reference
Information
This
chapter
provides
an
overview
of
the
system,
including
a
logical
description
and
a
physical
overview.
Additional
details
pertaining
to
the
system
are
also
provided.
These
include:
v
Memory
overview
and
placement
v
General
description
of
the
operator
panel
v
Cabling
rules
v
System
location
rules
and
descriptions
v
Powering
on
and
off
the
system
v
Power
flow
v
Data
flow
Overview
The
RS/6000
Enterprise
Server
Model
H80,
Eserver
pSeries
660
Models
6H0
and
6H1
are
multiprocessor,
multibus
systems
packaged
in
drawers.
The
processors
and
memory
are
packaged
in
a
5
EIA-unit
central
electronics
complex
(CEC
drawer),
and
the
I/O
devices
are
in
a
5
EIA-unit
I/O
drawer.
The
basic
system
consists
of
one
CEC
drawer
and
one
I/O
drawer
in
the
same
rack.
Connections
between
the
CEC
drawer
and
I/O
drawers
are
made
through
a
number
of
cables,
which
include
the
V/S
COMM
cable,
RIO
(remote
input/output)
cables,
and
JTAG
cable.
Processors
The
Model
H80
and
Model
6H1
can
have
one
to
six
processors,
of
either
of
two
processor
types,
in
various
configurations:
v
Minimum
configuration
is
one
450
MHz
processor,
which
has
2
MB
of
L2
cache.
v
Two
or
four
450
MHz
processors,
each
with
4
MB
of
L2
cache.
v
Six
500
MHz
processors,
each
with
4
MB
of
L2
cache.
OR
v
Minimum
configuration
is
either
one
600
MHz
processor,
which
has
2
MB
of
L2
cache,
or
one
750
MHz
processor,
which
has
8
MB
of
L2
cache.
v
Two
or
four
600
MHz
processors,
each
with
4
MB
of
L2
cache.
v
Two
or
four
750
MHz
processors,
each
with
8
MB
of
L2
cache.
v
Six
668
MHz
processors,
each
with
8
MB
of
L2
cache.
v
Six
750
MHz
processors,
each
with
8
MB
of
L2
cache.
The
Model
6H0
can
have
one
to
four
processors,
of
either
of
two
processor
types,
in
various
configurations:
v
Minimum
configuration
is
one
450
MHz
processor,
which
has
2
MB
of
L2
cache.
v
Two
or
four
450
MHz
processors,
each
with
4
MB
of
L2
cache.
OR
1
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