Chapter
1.
The
System
x3655
Type
7985
server
The
IBM
®
System
x3655
Type
7985
server
is
a
2-U
1
-high
server
that
is
ideally
suited
for
networking
environments
that
require
superior
microprocessor
performance,
efficient
memory
management,
and
flexibility.
The
server
can
be
upgraded
to
a
symmetric
multiprocessing
(SMP)
server
through
the
addition
of
an
optional
microprocessor.
The
server
has
two
model
styles,
which
are
based
on
the
size
and
number
of
hard
disk
drive
bays:
v
The
3.5-inch
models
have
six
3.5-inch
hot-swap
hard
disk
drive
bays.
Install
only
3.5-inch
drives
in
these
models.
If
you
install
an
optional
tape
drive,
the
tape
drive
occupies
two
of
the
six
3.5-inch
drive
bays.
v
The
2.5-inch
models
have
eight
2.5-inch
hot-swap
hard
disk
drive
bays
and
one
3.5-inch
tape
drive
bay.
Install
only
2.5-inch
hard
disk
drives
and
an
optional
3.5-inch
tape
drive
in
these
models.
Throughout
this
documentation,
the
terms
2.5-inch
models
and
3.5-inch
models
are
used
to
distinguish
between
the
server
styles.
Performance,
ease
of
use,
reliability,
and
expansion
capabilities
were
key
considerations
in
the
design
of
the
server.
These
design
features
make
it
possible
for
you
to
customize
the
system
hardware
to
meet
your
needs
today
and
provide
flexible
expansion
capabilities
for
the
future.
The
server
comes
with
a
limited
warranty.
For
information
about
the
terms
of
the
warranty
and
getting
service
and
assistance,
see
the
Warranty
and
Support
Information
document.
The
server
contains
IBM
Enterprise
X-Architecture
™
technologies,
which
help
increase
performance
and
reliability.
For
more
information,
see
“What
your
server
offers”
on
page
6
and
“Reliability,
availability,
and
serviceability
features”
on
page
8.
You
can
obtain
up-to-date
information
about
the
server
and
other
IBM
server
products
at
http://www.ibm.com/systems/x/.
1. Racks
are
measured
in
vertical
increments
of
1.75
inches
each.
Each
increment
is
called
a
″
U.
″
A
1-U-high
device
is
1.75
inches
tall.
©
Copyright
IBM
Corp.
2007
1
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